Gingival Edge Research Articles

Surface wear of attachments in patients during clear aligner therapy: a prospective clinical study

BackgroundThis prospective clinical study aimed to quantitatively evaluate the surface wear of attachments and investigate the associated risk factors. Additionally, the wear values and regions of three types of commonly used attachments were explored.MethodsParticipants were recruited from the population of patients who received clear aligner therapy from October to December 2022. Intraoral scanning was performed on eligible participants before treatment (T0), immediately after initial bonding of attachments (T1), and at 2 months (T2), 4 months (T3), 6 months (T4), and 8 months (T5) after starting treatment. The attachment volume, average depth and regions of attachment wear were measured using superimposed digitized models. The Kruskal–Wallis test was performed to compare data between multiple groups. Multiple linear regression analyses were performed to evaluate risk factors for the volume of attachment wear.ResultsA total of 47 patients with 617 attachments were included. As treatment time increased, the attachment volume decreased significantly (P = 0.003). The initial attachment volume was positively related to the volume of attachment wear (β = 0.527, P < 0.001). The volume of attachment wear was significantly greater in females than in males (β = 0.147, P = 0.020) and in optimized attachments than in conventional attachments (β = 0.308, P < 0.001). The wear of 3-mm rectangular attachments progressed from edges to buccal surfaces, with the deepest wear at corners of gingival edges; the wear of the optimized attachments was primarily located on surface ridges. The wear volume ratio of the optimized root control attachments was significantly greater than that of the 3-mm rectangular attachments at T3 (P = 0.011), T4 (P < 0.001), and T5 (P < 0.001).ConclusionsThe volume of attachment wear increased gradually with treatment time. Sex, attachment type, and initial attachment volume were risk factors for the volume of attachment wear. The deepest wear regions of 3-mm rectangular attachments were at the corners of gingival edges, while the deepest wear regions of optimized attachments were at surface ridges. Four months after treatment, optimized root control attachments showed more relative wear than 3-mm rectangular attachments.

Evaluation of 940 nm Diode Laser in Esthetic Crown Lengthening

Abstract Background: Crown lengthening is a surgical procedure that apically positions the gingival edge and/or removes supporting bone in order to increase the amount of supra gingival tooth structure for restorative or cosmetic purposes. The objective of the study: The purpose of this study was to evaluate the efficacy of the 940nm diode laser in esthetic crown lengthening surgery through clinical observations, patient questionnaires, clinical photographs, and gingival healing following gingival operations. Material and methods: In this randomized clinical trial, 16 patients (11 females and 5 males) had their crowns surgically lengthened using a diode laser (940 nm) in continuous wave (CW) mode with 1 watt energy settings. A visual analogue scale is used on the first, third, seventh, and twenty-first days following surgery to record pain, swelling, bleeding, functional interference, tooth sensitivity, and success from an aesthetic standpoint, as well as overall patient satisfaction based on patient opinion and clinical photographs. Results: In the present study, we noticed that the scale of pain, bleeding, oedema, function interferance, and tooth sensitization significantly decreased gradually during the first two visits. The measured parameters completely disappeared after one week in most cases, as well as increase patient satisfaction and aesthetic achievement. The patients were recalled three weeks later, the wounds had totally healed, and the patient were not complaining of any pain. Conclusion: Crown lengthening requires optimal gingival margin design. This involves precise shaping of delicate tissues, which is difficult with the scalpel. While Lasers give improved gingival sculpting control and can be used for aesthetic crown lengthening. The laser surgery has many advantages, including excellent hemostasis with little or no bleeding, being less invasive and sterile wound cut, causing less pain and suffering during and after surgery, and enhancing patient satisfaction since the operation is short and, in most circumstances, relatively painless. Also, in laser surgery, there is less functional interruption and enhanced patient satisfaction since a periodontal pack is not needed to cover the surgery site. The healing is faster and more aesthetic when using laser surgery procedure.

Особливості превенції ускладнень при застосуванні мостоподібних зубних протезів

Topicality. Dental morbidity continues to remain at a high level, the complication of which is partial loss of teeth. Orthopedic patient treatment after the manufacture of fixed dentures requires a special approach, since each orthopedic construction has certain retention elements for food residues and, thus, contributes to the violation of the hygienic condition of the oral cavity, the active formation of a biofilm with the phenomenon of «Quorum Sensing». One of the methods of optimizing the condition of the oral cavity and the periodontal tissues of supporting teeth is the use of photodynamic therapy. At the same time, the issue of using photodynamic therapy in the presence of dental prostheses in the oral cavity remains insufficiently studied, which determines the relevance of our research. The purpose of the study is to increase the effectiveness of orthopedic replacement of tooth row defects and prolong the period of use of fixed dental prostheses by using supportive photodynamic periodontal therapy of abutment teeth. Materials and methods. The research was conducted at the Department of Dentistry of the Institute of Postgraduate Education of the O.O. Bogomolets National Medical University, the Department of Dentistry of the National University of Health Protection of Ukraine named after P. L. Shupyk, and «Academic Dentistry» LLC, Kyiv. We observed 58 people of three age groups: 30–44 years, 45–59 years, and 60 years and older, including 22 men and 36 women with included dental defects, who were made bridge-shaped prostheses. The control group (III group) included 22 people of the same age groups with intact dentitions and physiological forms of bite, who had intact dentitions without clinically diagnosed periodontal tissue diseases and teeth affected by the carious process. 25 people (group I) underwent prosthetics after traditional therapeutic training and professional oral hygiene prior to prosthetics, and, according to clinical indications, periodontal treatment. 22 persons of the II group, were additionally prescribed photodynamic therapy of the periodontal tissues of the abutment teeth, which was applied before applying and during the period of use of orthopedic construction. For photodynamic therapy, the «Lika-Therapeut-M» dental system was used, which includes a laser with a wavelength of 660 nm and a toluidine blue preparation. To ensure the therapeutic photobiological effect directly in the periodontal tissues, before starting the photodynamic therapy procedure, professional oral hygiene was performed. The results. Prosthetics of a group of patients with the appointment of sessions of photodynamic therapy, which is applied before applying and during the period of use of orthopedic constructions in comparison with the results of prosthetics without any supporting periodontological therapy of supporting teeth, indicate an improvement in the hygienic state of the oral cavity, a reduction in inflammatory-dystrophic changes in the periodontal tissues supporting teeth during the period of use of orthopedic constructions, which allows to avoid recession of the gingival edge of teeth covered with artificial crowns and, accordingly, prolong the period of use of fixed orthopedic constructions. Conclusions. The use of fixed dentures due to the retentive properties of the intermediate part of the bridge-like dentures contributes to the deterioration of oral cavity hygiene and, accordingly, biofilm with the phenomenon of "Quorum Sensing", which requires the use of professional oral hygiene and effective oral hygiene lessons. In case of using artificial crowns, inflammatory and destructive changes in the marginal edge of the gums occur, for the prevention of which it is advisable to use photodynamic maintenance therapy of the periodontium of supporting teeth. The appointment of sessions of photodynamic maintenance therapy, which is used before applying and during the period of use of orthopedic constructions, contributes to the improvement of the hygienic condition of the oral cavity, the reduction of inflammatory and dystrophic changes in the periodontal tissues of supporting teeth during the period of use of orthopedic constructions, which allows to avoid recession of the gingival margin of teeth covered with artificial crowns and , respectively, to prolong the period of use of fixed orthopedic constructions. Keywords: bridge fixed dentures, prevention of complications, photodynamic therapy, periodontal tissues.

Comparison of Open Flap Debridement, with and without Diode Laser in the Management of Chronic Periodontitis: A Randomised Split Mouth Clinical Trial

Introduction: The goals of periodontal therapy include preventing illness, slowing or stopping disease development, replacing lost periodontal tissues, and preserving the therapeutic outcomes. The apical repositioning of the gingival edge during traditional periodontal surgery exposes the root surface to the oral cavity and reduces pocket depth. It may lead to attachment loss, Gingival Recession (GR). It is also commonly recognised that periodontal surgery causes pain and suffering. Laser assisted periodontal therapy has been the subject of study in an effort to address these drawbacks. Aim: To compare the efficacy of diode laser as an adjunct to Open Flap Debridement (OFD) with that of OFD alone in the management of chronic periodontitis patients. Materials and Methods: This randomised clinical trial with split mouth study design will be conducted in Periodontics Department at Sharad Pawar Dental College, Wardha, Maharashtra, India, for a duration of six months. Thirteen patients (26 quadrants) with generalised chronic periodontitis patients will be selected. The Probing Pocket Depth (PPD) ≥5 mm after phase I therapy will be included in this split mouth study. Diode laser (920 nm) will be used as an adjunct to OFD (test) as compared with conventional flap surgery (control). Clinical parameters like Plaque Index (PI), Papillary Bleeding Index (PBI), PPD, Relative Attachment Level (RAL) and Relative Gingival Marginal Level (RGML) and GR will be recorded at baseline and six months post-therapy. Visual Analogue Scale (VAS) will be used to determine patient discomfort intraoperatively and after one week. A questionnaire for patient-based outcomes will be administered after period of six months postsurgery and response will be recorded. Student’s paired t-test will be used for comparing the treatment groups at baseline and six months.

Gingival overgrowth during orthodontic treatment and its management.

An increase in plaque retention and ineffective dental hygiene practices lead to gingival enlargement (GE). A 24-year-old female came to the department of periodontics with chief complaint of proclined in the front region of the jaw, accordingly planned for orthodontic treatment. After 10 months of orthodontic therapy, it was observed that there was GE in the upper anterior region of the teeth. Following comprehensive scaling and dental hygiene instructions, the patient was summoned back three weeks later for another evaluation and a gingivectomy operation was scheduled. The administration of local anaesthetic was carried out under all septic safeguards and circumstances. Pocket markers were used to identify bleeding spots. Then, using a no. 15 BP blade or Kirkland knife, external bevel cuts were made beyond the markings. As the lesion extended interproximally, the Orban knife was then utilized intradentally. Using a curette and scissors, tissue tags were taken off. By applying pressure packs with wet gauze or cotton infused with local anaesthetic, the bleeding was managed. Following the establishment of hemostasis, a scalpel gingivoplasty involving the thinning of the connected gingiva, tapering of the gingival edge, and shaping of the interdental papilla was carried out. Periodontal dressing was applied when the bleeding was stopped. Analgesics and an antiseptic mouthwash were prescribed for the patient as part of the postoperative instructions.

A Thorough Literature Evaluation of Orthodontic Therapy in Periodontitis Prone Patients

The goal is to look through the literature for clinical scientific facts on the impact of orthodontic treatment on periodontal status in periodontitis prone people. The effects of orthodontic banded attachments on periodontal disease and, more particularly, the bacteria present at the gingival edges, are examined in this paper.&#x0D; This is a review focuses on important advancements in orthodontic methods and microbiological advances that have aided in the clarification of orthodontic appliance interrelationships and gum disease (periodontitis). Suggestions for how they may be improved are given, as well. As well as focusing study on specific regions. This review focuses on interrelation between malocclusion and periodontal diseases and relationship between periodontal diseases and accumulation of bacterial film around the orthodontic appliances which leads to periodontal changes or gum diseases. Study focuses on issues caused due to orthodontic bands and the focuses and shows the gingival changes caused by the orthodontic appliances. It also shows the microbiology responsible of the periodontal diseases caused. The main objective of the study is to evaluate the prevalence of gum diseases in patients with malocclusions and patients with corrected malocclusion with the help of orthodontic appliances. The review also focuses on how to prevent periodontal diseases during orthodontic correction. And shares the measures taken to prevent periodontal diseases during orthodontic corrections. The specificity of the cause and effect is explained in the below given review article. The specific issue caused by the orthodontic appliance is well explained in the review article.

MORPHOFUNCTIONAL FEATURES OF A HARMONIOUS SMILE

Smile-expressive movements of facial muscles accompanying emotions, showing a disposition to laugh and expressing pleasure, greeting, joy, goodwill, emotion, irony, disdain, ridicule, suffering. Currently, the design of a smile is quite relevant direction not only in image-making, but also in aesthetic medicine and dentistry. Nowadays, people have become more demanding about their appearance. Modern people want to have a beautiful, healthy smile. Demand creates supply. Not so long ago, aesthetic dentistry entered the dental practice as a science at the intersection of dental specialties. A relatively new direction that deals with aesthetic issues through a comprehensive, consistent approach. This article describes a harmonious smile, the factors that make up a harmonious smile, from the perspective of aesthetic dentistry. A detailed analysis of the shape of the face is carried out, and the main landmarks that should be paid attention to when determining the parameters of the face are described. Dental rows, parallelism of key lines, analysis of the gingival edge in normal and pathological conditions are described. Based on these parameters, the dentist can determine the factors of a harmonious smile, their pathology in order to make a further treatment plan in order to make the patient's smile beautiful and happy.

Investigation of microleakage of polymerized with LED and halogen light devices four different restorative materials

Aim: This study aimed to evaluate the in vitro effects on microleakage of LED and halogen light devices used in the polymerization of monomer structure composite resins of different viscosities and inorganic filling particle size applied to standard class V cavities in primary teeth.&#x0D; Methodology: 80 non caries primary molar teeth with standard class v cavity on the buccal surfaces were used. The teeth were randomly divided into 4 main groups and restored with composite resins (Herculite® XRV, Ultra™, Filtek™ Silorane, Vertise™ Flow, Æliteflo™). Each group was divided into 2 sub-groups for polymerization with LED or halogen light devices. Following the thermal cycle and subsequent procedures, the dye penetration method was used to evaluate microleakage. The microleakage scores were evaluated using the Kruskal-Wallis and Mann-Whitney U-tests.&#x0D; Results: According to the results of the statistical analysis, in polymerization made with halogen and LED light devices at the occlusal edge, the microleakage scores from lowest to highest were as follows: Filtek™ Silorane &lt; Herculite® XRV Ultra™ &lt; Æliteflo™ &lt; Vertise™ Flow. In polymerization made with halogen and LED light devices at the gingival edge, the microleakage scores from lowest to highest were as follows: Filtek™ Silorane &lt; Herculite® XRV Ultr™ &lt; Vertise™ Flow &lt; Æliteflo™.&#x0D; Conclusion: In the polymerizations made by using LED and halogen light devices, Herculite® XRV Ultra™, was found to be successful as it showed similar values to Filtek™ Silorane, which gave the best results in terms of microleakage. Moreover, as we have reached similar findings in our thesis study in respect of microleakage, in cases indicating the use of flow composite resin materials such as Æliteflo™, Vertise™ Flow can be used as it has the advantage of ease application and thus provide an ideal alternative in pediatric dentistry.&#x0D; &#x0D; How to cite this article:&#x0D; Günay A, Tümen EC. Investigation of microleakage of polymerized with LED and halogen light devices four different restorative materials. Int Dent Res 2020;10(3):73-9. https://doi.org/10.5577/intdentres.2020.vol10.no3.2&#x0D; &#x0D; Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

Awareness on Mechanical and Chemical Plaque Control in Children- A Survey

Periodontal infections (gum disease and periodontitis) are viewed as incendiary maladies of microbiological starting points. Their most significant hazard factor is the amassing of a plaque biofilm at and beneath the gingival edge, which is then connected with an improper and ruinous host fiery insusceptible reaction Plaque control is the day by day expulsion of dental plaque, oral biofilm and furthermore counteraction of their collection on the teeth and different pieces of the oral pit. Mechanical plaque control is a viable strategy to dispose of gathering in the oral cavity. With opportunity a few changes came in toothbrushes to make mechanical plaque control progressively viable in everyday oral cleanliness practice. Cross sectional poll study was led. A sum of 104 individuals were made to respond to all the inquiries. The outcome will be examined utilizing factual investigation. In the examination, it was discovered that 72% of the population brush their teeth two times per day. 32% of the respondents feel stores in their teeth much in the wake of brushing. 72% of the individuals accept that brushing can forestall dental plaque. The point of the examination is to make mindfulness on the control of mechanical and substance dental plaque. The control of dental plaque is fundamental for developing kids with expansion of fluoride to mechanical plaque control before it solidifies to become dental tartar.

Microleakage of novel glass ionomer restoration in cavities prepared by Er,Cr:YSGG laser: An in-vitro study

Aim: To compare the microleakage of novel materials containing glass ionomer, which are applied to standard class V cavities prepared by Er,Cr:YSGG (erbium, chromium-doped yttrium, scandium, gallium, and garnet) laser and by conventional diamond bur in primary teeth. Materials and Methods: Fifty non-carious primary molar teeth were randomly divided into five main groups and restored with various materials containing glass ionomers (Group 1: Equia System; Group 2: Fuji IX GP; Group 3: Fuji II LC; Group 4: Dyract Extra; and Group 5: Giomer). Each group was divided into two subgroups according to laser and conventional preparation methods. Results: As for the gingival margin, in terms of leakage values, no statistically significant difference was observed between drill and Er,Cr:YSGG laser although less microleakage values were obtained in Er,Cr:YSGG laser groups 1 and 4 (P > 0.05). Among groups prepared by drill, the lowest leakage rates observed at the gingival margin are Equia System, Giomer, Dyract Extra, Fuji II LC, and Fuji IX GP, respectively. Among groups prepared by Er,Cr:YSGG laser, the lowest leakage rates observed in the gingival edge are Equia System, Giomer = Dyract Extra, Fuji IX GP, and Fuji II LC, respectively. Conclusion: Occlusal and gingival microleakage scores were the lowest in the groups restored with Equia system in the cavities prepared by both diamond bur and laser system. Equia system consisting of high-viscosity glass ionomer cement and nano-filled surface coat G-Coat Plus materials could be used successfully in pediatric dentistry.

Forces and moments generated by aligner‐type appliances for orthodontic tooth movement: A systematic review and meta‐analysis

The aim of this review was to systematically appraise the evidence on aligner mechanics and forces and moments generated across difference types of aligners. In vitro- laboratory studies for model simulated tooth movement with aligners. Database searches within Medline via Pubmed, Cochrane Central Register of Controlled Trials (CENTRAL), LILACS via BIREME Virtual Health Library. Unpublished literature was also searched in Open Grey, ClinicalTrials.gov (www.clinicaltrials.gov), the National Research Register (www.controlled-trials.com) and Center for Open Science (Open Science Framework), using the terms "aligner" AND "orthodontic". Risk of bias assessment was based on the Cochrane Risk of Bias tool. Random effects meta-analyses were conducted. A total of 447 studies were identified through electronic search and after careful consideration of pre- defined eligibility criteria, 13 deemed eligible for inclusion, while 2 were included in the quantitative synthesis. When palatal tipping of the upper central incisor through PET-G aligners was considered, aligner thickness of 0.5, 0.625 or 0.75mm was not associated with a significantly different moment to force (M/F) ratio, given a common gingival edge width of 3-4mm. Aligner thickness does not appear to possess a significant role in forces and moments generated by clear aligners under specific settings, while the most commonly examined tooth movements are tipping and rotation. The findings of this review may be applicable to certain conditions in laboratory settings.

Effectiveness of Various Gingival Sulcus Widening Materials

The gingival-dental sulcus is a V-shaped depression located around the tooth neck; the space surrounded by the free gingival edge, the tooth (near the enamel-cement junction), and the junction between the gum and the tooth (epithelial junction); it contains the gingival sulcus fluid and the dental plaque. The long-term clinical success of prosthetic restorations depends on the careful and accurate completion of several procedures. One of the difficult procedures is the management of gum tissues and gum aesthetics. Their goal is to maintain the normal appearance of the healthy gum. Achieving this goal requires optimal periodontal health before treatment and minimal injury during treatment. The best way to optimize these things is to avoid touching the gum with the restoration materials.Our research was conducted on a number of nine (9) voluntary patients. Gingival sulcus widening is important for the accuracy of the impression for a future fixed prosthetic work, especially when the finishing line is in contact with the gingival sulcus. Dilation of the gingival sulcus is also important when crown restorations are performed in the cervix area due to the contact of the bare material with the periodontal tissues. Among the methods used for dilating the gingival sulcus, non-surgical ones are preferred by practitioners. For aesthetic and functional reasons, the edges of prosthetic restorations are placed under the gum. Therefore, the practitioner should record as accurately as possible the finishing edges to allow adequate edge integrity for restoration. This can be done by dilating the gingival sulcus, but also by providing a clean and dry space. In order to create a faithful mockup of the soft and hard tissue of the oral cavity, the gum around the prepared teeth should be thoroughly checked. This gum should be displaced and bleeding is avoided.

Показатели оптической плотности альвеолярной кости пациентов с хроническим генерализованным пародонтитом и бруксизмом

The article is devoted to the study of optical density of patients with paradentium diseases. The aim of the study was the evaluation of indicators of optical density of bone tissue of jaws using dental computerized tomography in patients with chronic generalized parodontitis. Materials and methods: in the research following methods were used: dental computerized tomography, densitometry, index estimation of paradentium tissues. The characteristics of clinical, functional features of patients were given. The method of treatment was developed. The effectiveness of this method was evaluated. The positive dynamics of clinical symptoms is more pronounced in patients that received the offered method of treatment, than in patients that received basic therapy. This revealed in the reduction of time of the treatment on 10 days in average. The disappearance of edema, hyperemia of the gingiva, pain and bleeding during the probing and during eating, the restoration of densely elastic consistency of the gingiva, correct configuration of marginal papillae and full gingival edge are clinically revealed. Complex use of basic therapy, laserphoresis with Kanalgat gel in patients with chronic generalized parodontitis of mild severity caused to significant increase in the clinical effectiveness of treatment.

Forces and moments delivered by the PET-G aligner to a maxillary central incisor for palatal tipping and intrusion.

To evaluate the effect of material thickness and width of the gingival edge on the forces and moments delivered by aligners prepared from Duran foil (PET-G) to a maxillary incisor during tipping and intrusion. Aligners prepared from PET-G of three material thicknesses (0.5, 0.625, and 0.75 mm) and three widths of gingival edges (0-1, 3-4, and 6-7 mm) were investigated during incisor palatal tipping and intrusion of 0.5 mm each. Forces and moments were measured with a six-component measuring device. The influence of aligner thickness and aligner extend on the force and moment development were tested for statistical significance (P < .05). The Fx and Fz forces produced during palatal tipping and intrusion by the 0.75-mm aligner material was significantly higher than those produced by the 0.5-mm-thick material (P = .005 and P = .047, respectively). There was no statistical difference between aligner thickness of 0.5 and 0.625 mm and between 0.625 and 0.75 mm. The same behavior was observed for the palatal moment (My). The Fx and Fz forces produced during palatal tipping and intrusion by the aligner with an extension of 0-1 mm edge was significantly lower than that of the aligner with a larger extension (3-4 mm edge: P = .003; 6-7 mm: P = .001). However, there was no statistical difference between aligners with a 3-4-mm and a 6-mm edge. The same behavior was observed for the palatal moment (My). The forces and moments exerted by the PET-G aligner on teeth vary, depending on the material thickness, width of the aligner edge, and direction of tooth movement.

Gigi Tiruan Sebagian Kerangka Logam sebagai Penunjang Kesehatan Jaringan Periodontal

Penggunaan gigi tiruan sebagian sangat penting dalam mempertahankan kesehatan jaringan periodontal dan menjaga stabilitas gigi yang tersisa. Pembuatan gigi tiruan yang tepat merupakan fase integral dari perawatan penyakit periodontal secara keseluruhan dalam mempertahankan kesehatan jaringan periodontal tersebut.Gigi tiruan sebagian lepasan harus didesain untuk dapat mengurangi penumpukan sisa makanan serta plak pada gigi dan tepi gingiva dari gigi penyangga. Pemilihan bahan logam sebagai gigi tiruan pada kasus periodontal kompromis dapat membantu dalam mencegah pergerakan gigi dan mempertahankan posisi gigi pasca perawatan periodontal karena sifat logam yang lebih kaku dibandingkan dengan bahan lainnya, sehingga keberhasilan perawatan dapat tercapai. Pembuatan gigi tiruan kerangka logam yang baik dan kerjasama yang baik antara semua anggota tim medis dalam menangani kasus akan menghasilkan keberhasilan perawatan yang dilakukan. Tujuan dari penulisan sari pustaka ini adalah menambah ilmu dan wawasan periodontis dan prostodontis dalam penggunaan gigi tiruan sebagian lepasan kerangka logam pasien periodontal kompromis. Pemberian informasi dan mendidik pasien dalam menjaga kebersihan gigi tiruan dan mulutnya juga merupakan faktor penting yang menentukan keberhasilan pembuatan gigi tiruan.Frame Partial Denture as a Supportive Therapy for Periodontal Health. Partial denture is very important in maintaining periodontal health and maintaining the stability of the remaining teeth. The fabrication of denture is an important phase in comprehensive periodontal health therapy, so as to maintain the periodontal health. Removable partial dentures should be designed to reduce the accumulation of food residue and plaque on the teeth and gingival edge of the abutment. The selection of metallic materials as denture in case of periodontal compromise can help in preventing tooth movement and maintain the position of the teeth after periodontal treatment because the nature of metal is more rigid when compared with other materials, so that the success of the treatment can be achieved. Making good metal framework denture and good cooperation between all members of the medical team in handling the case will result in a successful treatment. The aim of the study is to enrich the knowledge for periodontists and prosthodontists in using metal removable prothesis in compromised periodontal patients. Providing information and educating patients in maintaining the cleanliness of denture and mouth are also an important factor that determines the success of the manufacture of dentures.

Comparative Evaluation of the Effects of Ozone, Diode Laser, and Traditional Cavity Disinfectants on Microleakage

Aim: This study aimed to evaluate the effects on microleakage of the application of ozone gas, laser and traditional cavity disinfection under in vitro conditions.Material and Methods: Ninety third-molar teeth extracted for various reasons were used in this study. All the teeth were prepared with a standard V cavity on the buccal surface. Then the teeth were randomly allocated to one of 6 groups of 15 teeth; Group 1 benzalkonium chloride, Group 2 chlorhexidine gluconate, Group 3 sodium hypochloride, Group 4 diode laser, Group 5 ozone gas, Group 6 control group- no disinfection was applied. Primer was applied to the cavities, then bond and 10-s polymerization. Clearfil AP-X was used in the cavities as a hybrid composite and polymerized for 20 s. The samples then underwent 1000 thermal cycles of 30-s application, in baths at temperatures between 5 ± 2 °C and 55 ± 2 °C. All the samples were stirred in 0.5% basic phuxine solution and the sections taken under stereomicroscope were examined and photographed at 15 × magnification. SEM analysis was made and the obtained results were statistically evaluated with the Kruskal–Wallis test.Results: No significant difference was seen between the groups in respect of the microleakage values of both the occlusal and gingival edges (p < 0.05). Comparison of the microleakage values of the occlusal and gingival edges of the groups determined the least leakage to be in the ozone group (p < 0.05).Conclusion: No statistical significance was determined between the groups. However, the mean least microleakage was found in the ozone group and the highest amount in the control group.

COMPARATIVE REVIEW OF GINGIVAL RETRACTION AGENTS

In order to obtain an adequate impression of demarcation line area of a prepared tooth located in or below the gingival edge it is necessary to perform the dilatation and drying of the gingival sulcus using retraction cord impregnated with adequate retraction agents. The aim of the study was to carry out comparative analysis of advantages and disadvantages of commercially available gingival retraction agents. Commercial retraction agents include astringents (metal salts) and vasoconstrictors on the basis of epinephrine. Further research should be aimed at examining the possibility of using sympathomimetic vasoconstrictors (tetrahydrosolin and oxymetasolin) for gingival retraction. Acta Medica Medianae 2012; 51(1):81-84.

GINGIVAL TUMOR OF NEWBORN

Massin¹in 1894 reported a case of gingival tumor in which the growth occurred in a newborn child. He described the tumor as pedunculated and double. It was removed surgically, and the child made an uneventful recovery. Füth²in 1902 reported a similar case. He was able to observe the child for two years after removal of the tumor. Instead of the first upper incisor a small gray stump grew at the previous site of the mass. Gingival tumors of the newborn were discussed in a paper published by Pearson³in 1913. He reported a case of double tumor, one section being as large as an egg and the other the size of a strawberry. The growth occurred on the gingival edge of the maxilla, at the point of junction of the premaxilla and the main portion of the palate. The tumor was removed surgically, and the

ARMY DENTAL CORP WORK IN REFERENCE TO VENEREAL DISEASE

Medical Journal of AustraliaVolume 1, Issue 23 p. 485-486 Original Article ARMY DENTAL CORP WORK IN REFERENCE TO VENEREAL DISEASE Lieutenant B. Thompson, Lieutenant B. Thompson Dental Officer LangwarrinSearch for more papers by this author Lieutenant B. Thompson, Lieutenant B. Thompson Dental Officer LangwarrinSearch for more papers by this author First published: 01 June 1917 https://doi.org/10.5694/j.1326-5377.1917.tb101843.x 1Since this report was given, the treatment has been changed, with splendid results. After scaling and cleaning as above, the gingival edges are swabbed with chromlc acid. 2 1/2% solution, followed by:- Chloreton… ‥ ‥ ‥ ‥ ‥ ‥ ‥ ‥ 1.6 Giycerini‥ ‥ ‥ ‥ ‥ ‥ ‥ ‥ ‥15.00 Spirit. vin, recto. ‥ ‥ ‥ ‥ ‥ ‥ 15.00 given to the pattent as a mouth wash. The sloughing and the soreness have invariably disappeared at the time of the second visit. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume1, Issue23June 1917Pages 485-486 RelatedInformation