Maxillary Denture Research Articles

Patient satisfaction levels for complete dentures (F/F) delivered by undergraduate dental students

One important aspect of acceptance of full denture treatment is that of patient’s perceived outcome. A teaching environment is the best place for future clinicians to understand this aspect of treatment. The aim of this study was to assess the satisfaction levels of patients who received complete dentures delivered by undergraduate dental students at the University of Otago. Participants’ attitude toward dentures was measured via a 16-item questionnaire based on Patient’s Denture Assessment (PDA) questionnaire. It comprises of items that assessed factors related to dentures and was quantified on a four-point scale. A total of 60 edentulous patients wearing maxillary and mandibular dentures were recruited then contacted using a list of patients whose treatment were carried out and completed in the undergraduate clinic from 2010-2018 and were sent an explanatory letter, an informed consent form, and a self-administered questionnaire in a return envelope to the University of Otago Faculty of Dentistry. Bivariate analysis was then carried out on the responses. 55% of the invited participants responded to the survey. The mean extent of PDA impacts was 0.15 (range 0.0-0.71). There were no significant differences in the experience of the prevalence and extent of PDA impacts by gender and age. 81.8% reported their denture to be very important to them and 91% found it “very easy” or “easy” to eat and swallow. 88% enjoyed their meals “well” or “very well”. Bivariate analysis showed those aged 70 years old or younger were less likely to report issues with the denture, while there was no statically significant difference between genders. Overall, the participants expressed satisfaction with the treatment received at the faculty over the sub-groups of function, speech/aesthetics, upper denture, lower denture, and considered the denture to be of high importance.

Willingness to accept or refuse mandibular implant overdenture treatment: A prospective study on edentulous enrolled in a clinical trial.

Several complete denture wearers have major complaints and may be benefitted from implant treatment. However, the factors that shape the demand for and utilization of implants need further investigation. The aim was to evaluate edentulous patient's willingness to accept or refuse the offer and provision of implant-retained treatment. As part of a clinical trial, edentulous subjects were offered a mandibular overdenture retained by four mini-implants opposing a conventional maxillary denture. Treatment was offered without any financial costs for the patients. Patients' level of interest in receiving treatment was assessed using a 5-point Likert scale, and they were asked to respond to a list of reasons that led to their decision to accept or refuse implants. Those who refused implants received conventional prosthodontic interventions as required, and those who accepted implant treatment underwent surgical planning and implant placement. Of 175 eligible subjects, 147 accepted the offer of treatment and were invited to take part in the study (69.4% women, mean age 67.4± 10.0 years). Overall, 111 patients (75.5%) expressed a positive intention to undergo implant treatment at the initial contact. Implant treatment was performed for 56.3% (9/16) of those who answered 'probably yes' about their level of interest in implant treatment on the Likert scale, and 69.6% (64/92) of 'certainly yes' (p< .001). Older subjects were less likely to receive implants (OR=0.93; p= .036), whilst those with a positive intention towards implants (OR=3.15; p= .001), those previously treated by the dental team (OR=7.89; p< .001), and who actively demanded implants (OR=18.1; p< .001) were more likely to accept treatment. Improved chewing was the most common reason for accepting implants, whilst fear of surgery was the most reported reason for refusal. Refusal of implants was high among edentate patients even when financial costs were removed. Patients' initial attitude towards acceptance is a key factor in the demand for and uptake of implant therapy.

Management of palatal defect post hemimaxillectomy: a case report

A 42-year-old woman was referred to the Department of Prosthodontics, Hasanuddin University Dental Hospital with speech, swallowing and chewing difficulties caused by a fractured and non-reusable acrylic obturator. The patient had been using the obturator since maxillary tumor resection in 2012, which resulted in a significant and deep defect in the right maxillary region. Intraoral examination revealed a defect in the midline of the palate that extended to the left alveolar bone, and 21, 22, 23, 24, 25, 26, 27, 16 were edentulous. The maxillary defect did not appear inflamed or infected, and the surrounding area appeared normal. The treatment plan was fabrication of a maxillofacial skeletal partial denture to rehabilitate the maxillary defect. Primary impressions were made with irreversible hydrocolloid ma-terial with a stock tray to obtain a study model. Custom tray was made for individual impressions with polyvinyl si-loxane material to obtain working models. A survey was conducted, and framework and bite rim were made. Maxil-lary denture was designed with Akers clasps at 35, 37, RPI at 45, full palatal palate as main connector. The denture framework was tried on, followed by determination of vertical dimensions. Denture alignment was done in the articu-lator using A3 color. The was prostheses were tried in and evaluated of retention, articulation, phonetics, and aes-thetics; then sent to dental laboratory for processing and the obturator was then inserted into the patient's mouth. Pati-ent follow-up was scheduled 24 hours and 1 week after insertion. It is concluded that the maxillofacial partial den-ture is a rehabilitation device that can result in decent retention and stabilization, especially in cases of acquired de-fects. The prosthesis can improve patient adaptation and ability with speech, mastication and swallowing functions.

Accuracy of tooth positioning in 3D-printing aided manufactured complete dentures: An in vitro study

PurposeIn this study, we propose a 3D printing-aided method for manufacturing complete dentures and evaluate its accuracy of artificial tooth positioning. MethodsComplete dentures were designed and 3D printed and put on a plaster cast; and pack and press technique was used to fabricate the final denture during which artificial teeth were inserted in the teeth holes formed by the printed denture. In this study, fused deposition moulding (FDM) and stereolithography (SLA) techniques were used to fabricate complete dentures (10 pairs of maxillary and mandibular dentures each). After 3D scanning the final dentures, 3D comparison between the scanned teeth on the denture and its computer-aided design (CAD) data was made and single-tooth deflection angles were measured to evaluate the tooth position. Values were compared using independent-sample t-tests or the Mann–Whitney U test. ResultsIn the result of 3D comparison, the root mean square values of artificial teeth were 0.107 ± 0.018 mm (SLA group) and 0.136 ± 0.023 mm (FDM group; P < 0.05). In the result of single-tooth deflection angles, the mandibular anterior teeth demonstrated the maximum deflection angle, followed by the molars, premolars, and maxillary anterior teeth. ConclusionsIt is feasible to fabricate complete dentures using 3D-printed complete dentures as prototypes and combine conventional methods. The accuracy of the final denture fabricated using SLA printing was better than that of dentures produced using the FDM method. Clinical significanceThe 3D printing-aided manufacturing for complete dentures refers to using the 3D-printed dentures as a prototype along with the traditional process to fabricate final dentures and is an effective alternative when the dentures cannot be directly processed using computer-aided manufacturing (CAM).

A Randomised Clinical Study of the Effect of a Denture Soft Liner on Mandibular Ridge Resorption in Complete Denture Wearers After One and Two Years Of Denture Insertion

Abstract: Aim: The aim of this study was to assess the effect of soft denture liners on mandibular ridge resorption in complete denture wearers after two years of use. Methodology: The study included 32 patients ranging in age from 35 to 65 years old. Those patients were completely edentulous with well formed ridges, Class I relation and no medical problem. Thirty two selected patients were divided into two groups, namely Experimental group and Control group. Control group (n = 16, 8 males and 8 females) received conventional maxillary and mandibular complete dentures. Whereas in Experimental group, (n = 16, 8 males and 8 females) silicone lined lower complete denture were made. Three panoramic radiographs (orthopantomogram [OPG]) were taken for each participant to assess the amount of bone resorption; immediately, one year, and two years after denture insertion. For comparing two groups at three different time intervals, analysis of variance (ANOVA) two way with post-hoc tests was used. A statistically significant pvalue of less than 0.05 was considered. Results: After denture delivery, there was significant change in bone height in all patients ( p &lt; 0.001) . The comparison of bone height between the two groups in different regions at different time intervals revealed a significant difference in bone levels at baseline to one year and baseline to two years. However, Experimental group experienced 50% less bone loss than control group over a two-year period. Conclusion: Based on the findings of the current study, it can be inferred that use of soft liners helps in reducing residual ridge resorption significantly when compared with conventional denture material.

Mycological comparative study between single maxillary denture fabricated from Rapid heat cure acrylic resin material and conventional acrylic resin material modified by titanium dioxide nanoparticles. A Randomized clinical trial

Mycological comparative study between single maxillary denture fabricated from Rapid heat cure acrylic resin material and conventional acrylic resin material modified by titanium dioxide nanoparticles. A Randomized clinical trial

To Study the Effect of Anterior Palatal Surface Modifications of Complete Denture on Speech Intelligibility Oral Perception and Cortical Brain Function Activity: An In Vivo Study.

The classic maxillary full denture covers the whole palate,preventing the tongue from touching the denture base tissues itself.Thus, it has deleterious effects on cortical brain function and the ability to understand spoken language. This study aimed to determinethe effect of anterior palatal surface modifications of the complete denture on speech intelligibility oral perception and cortical brain function activity. This study compared the speech clarity, oral discernment, and cortical mind capability activity of complete denture wearers in three study groups: a)complete denture wearers with a small opening (SO) in the maxillary front palatal base; b) complete denture patients who wear regular complete denture; c) complete denture patients who did not wear complete denture; and d) complete denture patients who wear a functionally contoured modified palate(FCMP). Patients with no teeth at all underwent four phases of testing to assess their cognitive abilities and speech quality (pitch and volume). In the first phase, partial dentures were used. During phase 2, a conventional full denture was inserted.In the third phase, a palatal base denture was functionally altered. In phase 4, dentures with a little aperture at the front of the palatal base were used. Results:The values of pitch and intensity of sound in category A with FCMP modification I were 180.76 ± 24.12 and 73.27 ± 9.74,respectively. On the other hand, the values of pitch and intensity of sound in category B with FCMP modification I were 185.41 ± 27.29and 73.91 ± 8.31, respectively. The values of pitch and intensity of sound in category A with SO modification II were 188.52 ± 21.11 and 76.13 ± 5.21, respectively. On the other hand, the values of pitch and intensity of sound in category B with SO modification II were 194.59 ± 24.02and 75.21 ± 6.12, respectively. The findings for values of pitch and intensity were statistically significant among the four phases (p < 0.001). The highest speech intelligibility and cortical brain function were observed in phase 4 in both categories A and B, with the highest scores by experts of 3.21 and 3.42, respectively. Conclusion:Based on the findings of this in vivo investigation, it can be concluded that using modified dentures (modification types I and II) following denture installation improves speech intelligibility, oral perception, and cortical brain function activity.

Clinical Evaluation of Conventional Maxillary Heat-Cured Acrylic Single Denture Versus PEEK: A Crossover Study of Retention

Purpose: This clinical study aimed to evaluate the retention quality of conventional heat-cured poly methyl methacrylate (PMMA) compared to Poly Ether-Ether Ketone (PEEK) maxillary single dentures. Materials and Methods: Ten participants were eligible having completely edentulous maxillary arches opposed by class I Kennedy mandibular arches. Every patient received two maxillary single dentures fabricated by two different materials and techniques utilizing a crossover design. Each patient was provided with a single maxillary conventional PMMA denture fabricated by the conventional technique (group I) and a PEEK single maxillary denture fabricated by CAD /CAM technique (group II). The force-meter was implemented to measure the retention of the maxillary single dentures at time of denture delivery (T0) and then after 3 months of insertion (T3). Every denture was subjected to a slowly increasing vertical load until it was totally out of place (that was for 5 times at 10-minute intervals). The average retention of maxillary single dentures of both groups was analyzed using Paired t-test. Results: CAD/CAM PEEK maxillary single dentures showed statistically significant higher mean retention values than conventional heat-cured maxillary single dentures at time of insertion (P = 0.031),also, after three months post insertion (P = 0.04). Conclusions: CAD/CAM (PEEK) maxillary single dentures offered significantly higher retention than that of conventional heat polymerized single dentures. CAD/CAM (PEEK) maxillary single dentures could be a suitable choice when retention improvement is required. Recommendation: More long-term studies of variant evaluation methods are thus required to validate the results of this study.

Management of Repeated Denture Fracture Through Direct Metal Laser Sintering Metal Reinforced Denture

Direct Metal Laser Sintering (DMLS) is a type of additive metal production that is simpler, more precise, and healthier than traditional manufacturing, while being highly cost-effective. In this process, the metal powder which is free of binder or fluxing agent, is completely melted by the scanning of a high-power laser beam. The resulting part has properties like the original material. In removable prosthodontics, the fracture of heat cure acrylic resin dentures is an unsolved problem. The most common issue is a midline fracture of the maxillary denture. Among midline fractures, 71% were reported in maxillary complete dentures and 29% in mandibular dentures. Patients with heavy masticatory loads and those with parafunctional habits are more likely to experience this. In such circumstances, a metal framework base improves a prosthesis’s fracture resistance, stability, and retention. A 45- year-old female patient reported with a chief complaint of repeated fracture of maxillary complete denture and gave the history of midline fracture of upper denture three times in last 2 years. Intraoral examination revealed v shaped deep hard palate and severely resorbed mandibular ridge. DMLS metal reinforced maxillary denture and metal mesh reinforced mandibular denture was planned to prevent fracture of the denture in future. Metal framework reinforcement of complete denture is a simple, quick, and cost-effective technique to decrease the chances of denture fracture in future, thus beneficial for both patient and the dentist. One year follow-up has been done and patient is comfortable with the denture.

Masticatory performance and patient satisfaction of metal-reinforced and CAD/CAM-fabricated acrylic resin mandibular complete dentures

Background/aim The masticatory problem of removable complete dentures had been introduced by many researchers to be assisted by many recent technologies. Solving such issues advances self-patient satisfaction, confidence, and motivation. This study aimed to evaluate masticatory performance and patient satisfaction of metal-reinforced and CAD/CAM-fabricated acrylic resin mandibular complete dentures. Patients and methods Sixteen completely edentulous patients were divided randomly following a 1 : 1 allocation ratio into two groups; group I received maxillary and mandibular complete dentures constructed from acrylic resin reinforced with chrome cobalt framework and group II received maxillary and mandibular rapid prototype complete dentures (3D-printed) using the CAD/CAM technique. At baseline, 2, and 4 weeks, masticatory performance using the masticatory efficiency index and patient satisfaction using Borerrigter’s method of assessing patient satisfaction were evaluated at each interval for further statistical analysis using one-way analysis of variance test followed by Tukey’s post-hoc test for multiple comparisons and Pearson’s correlation coefficient between different variables. Results Regarding masticatory performance for each group, one-way analysis of variance revealed a significant difference between different intervals as a P value less than 0.05 with higher masticatory values for group II, while for patient satisfaction, it showed an insignificant difference for all satisfaction domains as a P value more than 0.05. The correlation between masticatory performance and overall patient satisfaction was calculated using Pearson’s correlation coefficient and revealed a moderate to strong, positive, significant correlation in both groups. Conclusion The masticatory performance and patient satisfaction of mandibular complete dentures constructed by the 3D-printed CAD/CAM method were higher than acrylic resin denture bases reinforced with chrome cobalt framework, denoting that the 3D-printed CAD/CAM method can be the primary clinical treatment option for completely edentulous patients despite its overall level of satisfaction, which requires additional follow-up investigations to pronounce the positive effect of CAD/CAM dentures.

Comparison of treatments for maxillary full denture and mandibular implant-supported fixed prosthesis in completely edentulous patients: A case report

Comparison of treatments for maxillary full denture and mandibular implant-supported fixed prosthesis in completely edentulous patients: A case report

Fluid-Retained Denture

Abstract For uniform distribution of the masticatory stress, a complete denture should have enough hardness on the polished surface and pliability and softness on the intaglio surface of the denture. Conventional dentures have a major flaw in that they are firm on the tissue surface, resulting in an unequal force distribution. In cases of flabby ridges, unemployed ridges with high resorption, a conventional denture might worsen the situation. To address this, a variety of materials and methods are being tested to see if they may offer a cushioning effect to the tissues in contact with the denture. The following report describes a fluid-retained maxillary complete denture, which has a flexible tissue surface that allows the underlying anterior hyperplastic condition to have a uniform stress distribution, which can improve the patient’s acceptance.

A case report of maxillary and mandibular removable complete dentures using subjective and objective evaluations

A case report of maxillary and mandibular removable complete dentures using subjective and objective evaluations

A case of masticatory function improvement by using maxillary and mandibular partial dentures for a patient with non-vertical stop occlusion

A case of masticatory function improvement by using maxillary and mandibular partial dentures for a patient with non-vertical stop occlusion

Evaluation of bite force, quality of life, and patients' satisfaction in elderly edentulous patients using implant overdentures.

This study aimed to compare the bite force (BF) between complete dentures and implant overdentures (IODs) retained by two mandibular implants. Additionally, we evaluated the quality of life (QoL) and patient satisfaction among individuals using IODs. In addition, the effects of demographic parameters such as age and sex, and clinical parameters such as implant length, implant diameter, attachment height, attachment color, and interimplant distance on BF, QoL, and patient satisfaction were evaluated. A total of 51 edentulous patients rehabilitated with the maxillary complete dentures and mandibular IODs retained by two implants were included in this study. BF was measured using a force meter pre- and post-implant in the same patients. Oral health-related quality of life (OHRQoL) was assessed with the Oral Health Impact Profile (OHIP-14) and patient satisfaction was assessed with the Visual Analog Scale (VAS) questionnaires. It was found that BF values were statistically higher for IODs than complete dentures (P < .001). In terms of attachment height of the OHIP scores, there was a significant difference in the psychological disability and social disability domains (P < .05). When examining the change in patient satisfaction as a function of sex, it was found that mandibular retention satisfaction differed significantly by sex (P < .05), but there was no significant difference in the other domains. Within the limitations of this study, it was observed that the BF increased after the use of IODs. Several factors, including age, interimplant distance, attachment height, and attachment color, were found to impact OHRQoL. Sex and implant diameter were identified as factors affecting patient satisfaction.

Integration of an intraoral scan and a conventional impression for fabricating complete dentures for a patient with flabby tissues

Inflammatory movable tissues in the maxillary anterior region are the result of excessive stimulation of the anterior alveolar ridge, as the maxillary denture habitually rotates anteriorly and upward during mastication. The pressure required for a functional impression makes it difficult to obtain the accurate anatomy of the inflamed mucosal tissues. An intraoral scanner can be used to record the movable tissues in an immobile state. However, for removable dentures, the oral scanner is limited by the difficulty in evaluating the denture borders or the posterior palatal seal area accurately. The fabrication of a complete denture by combining the use of an oral scanner to capture an anatomic impression without exerting pressure on the maxilla, including the movable tissues, and a traditional functional impression using the closed-mouth technique is described.

Scientific trends on research on denture stomatitis based on Scopus database: A bibliometric analysis.

Denture stomatitis is a clinical condition that affects people who wear removable maxillary dentures. It causes redness, soreness, and erythema and ultimately affects the general condition of the patient. The objective of this study was to analyze the leading countries, journals, organizations, and authors and the frequently used keywords associated with denture stomatitis. A bibliometric analysis of publications indexed in the Scopus database was conducted, and the article titles, abstracts, and keywords were analyzed using the VOSviewer software. Denture stomatitis-related publications from 1960 to 2021 were collected. This study included only research papers published in English with "article" as the paper type and dentistry as the subject area. Data from a total of 461 articles and 10 different journals were obtained. The papers were published in 64 different countries. Brazil and the United States of America were the top contributing countries, and the University of Sydney was the leading organization. Papers published in the Journal of Oral Rehabilitation received the highest number of citations, while author Gordon Ramage from the University of Glasgow received the highest number of citations. The bibliometric analysis revealed that the number of denture stomatitis-related publications indexed in the Scopus database is increasing globally. Since 2007, there has been an increase in research interest regarding denture stomatitis, with more publications from several countries expected to be published in different journals. Key words:Bibliometric analysis, denture, candida, VOSviewer, maxilla.

Effect of mandibular bilateral distal extension denture design on masticatory performance.

Removable partial dentures have a wide range of applications as missing tooth prostheses, and the denture design can be quite diverse. However, the factors affecting masticatory function remain unclear. We investigated the effect of denture design, especially the use of indirect retainers and major connectors, on masticatory function in patients with mandibular bilateral distal extension dentures. Fifty-three patients with mandibular Kennedy Class I and Eichner classification B occlusal support were included in this study. Masticatory performance (MP) was assessed using gummy jelly. For the dentures, the type of major connector (bar or apron), presence or absence of indirect retainers, number of rests, and number of artificial teeth were evaluated. The number of functional teeth and occlusal support, Eichner classification, maxillary denture usage, mandibular residual ridge height, and duration of denture use were also evaluated. The factors influencing on the MP were evaluated using the Mann-Whitney U test, Spearman's correlation coefficient, and logistic regression analysis. MP was significantly higher when the major connector was bar-type or when there was an indirect retainer than with an apron-type or no indirect retainer. MP was positively correlated with the number of functional teeth, occlusal support, and number of rests. Logistic regression analysis revealed that the number of functional teeth and the presence or absence of an indirect retainer were factors that significantly influenced the MP. An indirect retainer setting is useful for achieving good masticatory performance in mandibular bilateral distal extension dentures.

Maxillary Single Complete Denture with Metal Mesh Reinforcement: A Case Report

Single complete denture opposing natural dentition is common occurrence in daily practice. Opposing natural dentition could be completely or partially edentulous. Fabrication of single complete denture is always challenging to the dentists. It is difficult to achieve balanced occlusion in such cases because the remaining natural dentition could be extruded from socket, tilted or mispositioned. Heat cured denture base resins are most commonly used material for fabrication of denture but they tend to fracture when it is opposed by the natural dentition. The use of a metal mesh in denture base for reinforcement offers many advantages in such cases. This case report presents a case of fabrication of maxillary single complete denture with metal mesh opposing natural dentition in lower arch.

Bar Retained Tooth Supported Overdenture: A Case Report

Overdenture helps in preservation of the sensation of proprioception, maintains the border seal and provides the patient with good phonetics and chewing efficiency. The retention and stability of such prosthesis is enhanced greatly in bar-supported overdentures. This case report presents the step by step procedure for the fabrication of a canine supported hader bar mandibular overdenture that opposes a conventional complete maxillary denture. The bar was fabricated from pre-formed plastic bar, casted and female clips were attached in the mandibular denture. The mode of retention was primarily through frictional resistance.