To study the peculiarities of the anatomical structure and architecture of the mandibular in children at different age to CT data. 161 CT scans of the bones of the facial skull of children aged 1 to 18 years were selected. Orientation of the tomographic slices was based on the standardized protocol of CT studies. Differences were considered significant when p values were lower than 0.05. The width of the lower jaw was greatest in the area of the angle and chin symphysis. The general dynamics of the thickening of the cortical layer of the lower jaw from the vestibular side differed from the dynamics of the formation of the lingual cortex. The density of the cortical layer increased with age: the difference between its average value in the age groups of 1-3 years and 14-17 years was 16-46%. The width of the lower jaw in the process of its growth and development increases in different areas by an average of 6-58%. The thickening of the cortical layer with age is more intensive than the general increase in its thickness and amounts to 41-51% for various areas of the jaw, except for the head of the condylar process. The radiological density of the cortical layer increases with age by 6-67%, and reaches 2064.2±180.54 in the older age group.

The study aimed to evaluate the influence of two different rotary systems on GuttaCore obturation material overextension in curved root canals. Sixty-two canals of the extracted human molars with root canals of moderate and severe curvature were included. The teeth were randomly divided into 2 groups according to the rotary instruments used for the root canal shaping: PU group (n=31) - ProTaper Ultimate, and XP group (n=31) - XP-endo Shaper. After shaping root canals were obturated with GuttaCore and AH Plus sealer according to the manufacturer's instructions that differed between the groups. The length of the obturation material was evaluated radiographically and microscopically. The categorical variables homogeneous distribution was evaluated by the Chi-square (χ2) test. The odds ratio was evaluated to assess the tendency of obturation material overextension in one group compared to another. After applying inclusion criteria for the root canal obturation quality assessment, 16 specimens were excluded from the further study due to the low-quality obturation. Significantly more specimens with no obturation material overextension in the PU group than in the XP group (p=0.014) were observed. In the XP group, a significantly higher incidence of sealer, sealer and gutta-percha overextension was detected compared to the PU group. The chance of obturation material overextension in the XP group was higher than in the PU group. The root canals prepared with XP-endo Shaper and obturated with GuttaCore according to the manufacturer's instructions had a higher obturation material overextension incidence in curved root canals compared to ProTaper Ultimate.

Hutchinson - Gilford Progeria syndrome (HGPS) is a very rare syndrome characterized by early onset senescence. It is manifested as premature aging with involvement of hair, skin, nail, cardiovascular and bone manifestations. This syndrome has also been reported to be associated with craniofacial anomalies. With regard to these craniofacial phenotypes of Hutchinson - Gilford Progeria syndrome several studies are being undertaken all around the world. Here we present one such rare case of HGPS associated with craniofacial anomaly along with cleft lip and cleft palate in an eleven year old boy.

A 35-year-old patient reported with sharp pain on biting and sensitivity to cold concerning the first right premolar. On recording the history, clinical examination and tests such as vitality, bite test, transillumination, periodontal probing and radiographs a diagnosis of cracked tooth syndrome (CTS) was made. The root canal treatment was completed, but the patient did not turn up for the coronal restoration, resulting in a vertical root fracture and extraction. VRF's (Vertical Root Fracture) are more commonly encountered following endodontic treatment. Also, in teeth without endodontic treatment, with habits like bruxism and eating coarse, hard food. Early diagnosis of cracked teeth and fractures is critical for a clinician since it permits a conservative and preventive approach. Delay in diagnosis and treatment will result in involvement of the underlying periodontium, causing periodontal pockets, abscess formation and bone loss thereby further complicating the outcome.

Changes in the sinus membrane in the form of thickening or opacification often pose challenges in the differential diagnosis between rhinological and odontogenic causes. Due to their clinical similarities, the development of a radiological diagnosis, with Cone Beam Computed Tomography (CBCT) being the technique of choice, will be crucial for achieving an accurate diagnosis. A descriptive retrospective study was designed, comprising a pilot sample of 20 patients from the Faculty of Dentistry, Complutense University of Madrid, who had previously undergone a maxillary cone beam computed tomography (CBCT). The research applies Di Girolamo's classification to categorize radiological findings and assesses the relationship between sinus pathology and factors such as age, gender, and odontogenic causes. A total of 20 CBCT scans and health surveys from patients (14 males and 6 females), with mean age of 60 ± 8.14years were studied. Some type of sinus pathology was observed in 30 sinuses (75%) and no pathology in 10 sinuses (25%). Regarding potential etiology, dental pathology was the most prevalent (63.6%), followed by implants (18%) and oroantral communications (9%). There is a high incidence of sinus pathology. Sinus pathology is diagnosed more frequently in men and smokers. The most common types of sinus pathology are thickening of the sinus membrane, followed by opacification of the maxillary sinus.

Until now no studies were conducted to evaluate the cyclic fatigue resistance of both - rotary and reciprocating - endodontic instruments with and without cryogenic treatment. Therefore, the aim of this in vitro study was to evaluate the effect of cryogenic therapy on the cyclic fatigue resistance of various nickel-titanium rotary and reciprocating endodontic files in an artificial 90º curved canal. This in vitro study was conducted using 20 rotary and 20 reciprocating nickel-titanium (NiTi) instruments: 10 ProTaper Next, 10 ProTaper Ultimate, 10 Reciproc and 10 Plex RC-ONE. All instruments were divided equally into control and cryogenic treatment groups. Instruments in cryogenic treatment groups were immersed in liquid nitrogen (-196ºC) for 24 hours, after which they were gradually returned to the room temperature. All instruments were tested in an artificial canal with a 90º curvature, and the entire process was recorded till the instrument fracture. Time to fracture was multiplied by the corresponding rotation speed. Statistical analysis was performed using IBM SPSS Statistics software. The results of this study revealed statistically significant positive effect of cryogenic treatment on the cyclic fatigue resistance of Reciproc system instruments, while no statistically significant effect of cryotherapy was observed in the other instrument groups. When comparing different instrument systems in the cryogenic treatment groups, Reciproc instruments demonstrated statistically significantly higher cyclic fatigue resistance than other instruments in this study. Our research demonstrated the efficacy of deep cryogenic treatment in increasing the cyclic fatigue resistance of reciprocating endodontic instrument system Reciproc. The study also showed the significantly better Reciproc resistance to cyclic fatigue than rotary ProTaper Next and ProTaper Ultimate instruments.

Osteoma is a leisurely growing benign tumour involving bone consisting of well differentiated compact or cancellous bone that increases in size by continuous growth. It can be of a central, peripheral or extraskeletal type. The peripheral type emerges from periosteum. Solitary osteoma can be classified as peripheral (parosteal, periosteal or exophytic) when arising from the periosteum, central (endosteal) when arising from the endosteum or extraskeltal (so- called osseous choristoma) when arising in soft tissue. This article describes a case of 27 years old female who presented with painless swelling in the left body mandible and which was slowly growing and resulted in facial disfigurement. Ostectomy of the lesion was done under general anaesthesia. Postoperatively there was no complication and there was no facial asymmetry. After one year of follow up no recurrence was noted and patient has been kept on regular follow up.

Immunologically mediated mucocutaneous diseases frequently manifest initially in the oral cavity and often exhibit overlapping clinical features. This overlap complicates early clinical diagnosis and may delay appropriate management. The present study aimed to assess the prevalence and clinicopathological characteristics of oral lichen planus, oral pemphigus and oral pemphigoid in a large retrospective cohort. A retrospective analysis of 6300 biopsy records archived over a 21-year period was performed. Cases diagnosed histopathologically as oral lichen planus, oral pemphigus and oral pemphigoid were included. Demographic details and clinical features were retrieved from records. Hematoxylin and eosin stained sections were re-evaluated using current diagnostic criteria. Descriptive statistical analysis was carried out using SPSS version 21. Out of 6300 cases, 105 (1.66%) were immunologically mediated oral diseases. Oral lichen planus constituted 86 cases (1.36%), oral pemphigoid 15 cases (0.23%) and oral pemphigus 4 cases (0.06%). Characteristic clinicopathological features were observed for each entity, with oral lichen planus being the most prevalent. Immunologically mediated oral diseases represented a small proportion of oral biopsy specimens. Overlapping clinical features necessitate careful clinicopathological correlation to ensure accurate diagnosis. Histopathological examination remains essential for definitive diagnosis and appropriate management.

Epilepsy patients can show a wide range of oral and maxillofacial injuries after seizures. However, the occurrence of oral soft tissue necrosis (OSTN) has been rarely reported. In the current report, a 55-year-old man with refractory epilepsy was referred for evaluation of an extensive injury in the oral mucosa after a severe seizure. Intraoral examination revealed a painless grayish-white necrotic area in the posterior region of the buccal mucosa on the left side measuring about 2×3 cm. Clinical findings led to the diagnosis of post-traumatic OSTN and the patient underwent surgical debridement on an outpatient basis. Two-month follow-up showed complete healing associated with the formation of fibrous tissue. A review of the literature demonstrated that post-traumatic OSTN was not reported among oral and/or maxillofacial injuries found in epilepsy patients. However, the current report reinforces that soft tissue necrosis may occur in the oral cavity of these patients after seizures. Post-traumatic OSTN should be considered an oral injury found in patients with refractory epilepsy.

The purpose of this study was to evaluate the success of pterygoid implants in clinical patient examination and to prove that pterygoid implants are a suitable alternative for restoring chewing function with implants in the atrophied maxilla. The instantaneous study was conducted in October 2023 - April 2024 at the KDK Karpavičius D. Patients who had pterygoid implants inserted 6-96 months ago were invited for a follow-up examination and clinical-radiological oral examination. All subjects gave their written consent and were guaranteed anonymity. The 37 respondents of the research consisted of patients from 40 years old to patients 78 years old. During the study, a clinical and radiographic oral examination was performed to assess the support of 47 implants, restorations, probing depth, bleeding, plaque, recession, keratinized gingival volume, marginal bone loss, signs of periodontitis at other teeth/implants, as well as the time since implantation, age, gender, and smoking habits were also recorded. No rejected pterygoid implants were identified. Thus, no implants were characterized by marginal bone loss or recession. It was found that smokers had poorer oral hygiene habits. Poorer hygiene led to bleeding gums at pterygoid implants, and it was also observed that older patients clean their teeth and implants less frequently and have more signs of periodontitis. Although there was no evidence of marginal bone loss, pockets were felt around the implants, which affected the thickness of the keratinized gingiva. The success rate of pterygoid implants is very high, so these implants may be a good alternative for restoring the function of the atrophied maxilla. Poor oral hygiene habits, smoking, and age can affect the success of pterygoid implants.