Background: Extra-short dental implants have emerged as a reliable option for rehabilitating posterior areas with limited vertical bone availability. However, clinical evidence regarding their use as single-unit restorations under immediate loading protocols in the mandibular first molar region remains scarce. Purpose: To evaluate implant survival, marginal bone loss, and biological and prosthetic complications associated with single extra-short implants (5.5 and 6.5 mm) immediately loaded in the mandibular first molar position. Materials and Methods: A retrospective study was conducted including 19 patients rehabilitated with 19 extra-short implants placed in the mandibular first molar region between June 2019 and June 2023. All implants were restored with single screw-retained crowns on a unitary transepithelial abutment and immediately loaded within 24 hours. Implant survival and marginal crestal bone loss were assessed radiographically. The mean follow-up period was 38.6 ± 10.5 months. Results: No implant or prosthetic failures were recorded during the follow-up period, resulting in a cumulative survival rate of 100%. Mean marginal bone loss was 0.36 ± 0.13 mm mesially and 0.60 ± 0.16 mm distally. No clinically relevant biological complications were observed. Conclusions: Within the limitations of this retrospective study, immediately loaded single extra-short implants placed in the mandibular first molar region demonstrated favorable clinical outcomes. Careful case selection, conservative surgical protocols, and standardized prosthetic design appear to be key factors for achieving predictable results in this demanding clinical scenario.

Background: Diabetes Mellitus (DM) presents significant public health issues, contributing to early mortality and complications. It encompasses Type 1, Type 2, gestational, and other specific forms, with Type 2 (T2DM) being associated with an increased risk of dental caries (DC). DC is an infection caused by bacteria such as Streptococcus mutans and lactobacilli, which feed on carbohydrates and produce acids that erode tooth minerals, leading to cavities. The level of glycated haemoglobin (HbA1c) reflects long-term glycemic control, with higher levels correlating with elevated risks of developing DC. Aim of the Work: The current study aimed to evaluate the prevalence of DC among Libyan patients with T2DM, including both those with controlled disease and those with uncontrolled disease. Material and Methods: This study was conducted on 440 Libyan patients with T2DM, collecting data on disease duration and complications from medical records. Dependent binary variables (DC) and independent variables such as age, gender, and glycemic control were analyzed using IBM SPSS version 21. Result: In a study of 440 Libyan individuals with T2DM, 56.8% presented with (DC), primarily affecting the 40-59 age group (46.2%). DC prevalence was higher among females (53.6%) than among males (46.4%). Among diabetic patients (DPs) with DC, 24.4% were classified as controlled, while 75.6% were uncontrolled. Conclusion: The findings indicate a higher prevalence of DC in Libyan DPs, particularly in those with uncontrolled T2DM, and this is more common in middle-aged populations and females.

The glandular odontogenic cyst is now a well-known entity comprising < 0.5% of all odontogenic cysts with a recent review tabulating about 200 cases in the English literature. Glandular odontogenic cyst shows epithelial features that mimic glandular differentiation. The importance of glandular odontogenic cyst relates to the fact that it has a high recurrence rate and shares overlapping histologic features with central mucoepidermoid carcinoma. Glandular odontogenic cyst shows no pathognomonic clinico -radiographic characteristics and therefore in many cases it resembles a wide spectrum of jaw cysts and malignancies. Most of the times diagnosis can be difficult due to histopathological similarities with dentigerous cyst, lateral periodontal cyst and central mucoepidermoid carcinoma. Therefore, careful histopathological examination and a long-term follow-up are required to rule out recurrences.

The objective of this study was to evaluate the influence of variable dental implant thread shapes upon the failure mode and fracture behavior. Sixty custom made grade 4 titanium dental implants screws were manufactured according to the type of thread form and classified into; V-Form (Group 1), Square Form (Group 2), Buttress Form (Group 3) and Reverse But-tress Shape (Group 4); with Standard lab analysis set up following ISO14801 Protocol. The implants were mounted in an acrylic block and subjected to a 30° off-axis compression loading using Universal Testing Machine (UTM). The mode of failure was analyzed using a Stereomicroscope. The fractured surfaces of failed specimens were examined using Scanning Electron Microscope (SEM). The results showed that there was no statistically significant difference between the groups in terms of the failure mode distribution (p>0.05). Four different failure types were observed: Breaking the fixture and screw, breaking the abutment and screw, breakage of the screw or deformation of the hole implant system part. SEM fractography examination indicated a ductile fracture mechanism through plastic deformation of the implants fixture and abutment screws. Additionally, four distinct failure modes were identified: fixture and screw fracture, abutment and screw fracture, screw fracture, and hole implant component deformations. SEM fractography analysis showed a ductile fracture mode with plastic deformation of the implants fixture and abutment screws. The results of this study suggest that different thread forms failure mode was almost identical in all thread design.

The increasing lifespan and trend toward retention of third molars has led to a growing population of older adults with impacted third molars. While traditionally managed through early prophylactic extraction, contemporary evidence suggests that asymptomatic impacted third molars in healthy elderly patients may be safely monitored or managed conservatively. However, when intervention becomes necessary, advanced age presents unique surgical challenges, including prolonged healing, increased complication rates, and higher anesthetic risks. This review examines the current evidence on pathology prevalence, risk stratification, surgical considerations, and alternative treatment approaches, including coronectomy and watchful monitoring strategies, in the geriatric population.

Background: Occupational hazards in dentistry biological, chemical, physical, ergonomic and psychosocial pose significant risks during undergraduate training. We assessed knowledge, attitudes and practices (KAP) regarding occupational hazards among undergraduate dental students to identify gaps that can be addressed through education and policy. Methods: A cross-sectional survey was carried out at the Institute of Dental Studies and Technologies between 15 December 2025 and 30 January 2026. A structured, self-administered questionnaire (six sections: demographics; knowledge; attitude; practice; domain-specific awareness; training/need assessment) was completed by 453 students. Descriptive statistics (frequencies, percentages) summarized KAP; only fully completed questionnaires were included. Results: Of 453 respondents, 311 (68.6%) were female; 150 (33.1%) reported prior formal training on occupational hazards. Knowledge was moderate: most students recognised that dentistry involves biological/chemical/physical hazards (78.4%) and the cumulative risks of X-rays (84.5%); however, awareness was lower for chemical hazards (formaldehyde 59.0%; mercury 65.8%), with notable “don’t know” responses. Attitudes were strongly positive 87.9% agreed occupational hazards are a serious concern and 85.7% endorsed PPE use yet 81.9% considered undergraduate training insufficient. Self-reported safety practices were generally high for infection control (87.0% “always/often”) and biomedical-waste disposal (89.2%), but only 53% always used protective eyewear during curing. High prevalences of work-related ill-health were reported: musculoskeletal disorders 52.1% (shoulder pain most common), psychological stress/burnout 70.2%, and glove-related irritation/latex allergy 64.7%. Importantly, 88.5% expressed willingness to attend structured occupational-safety workshops. Conclusion: Undergraduate dental students showed positive attitudes and generally good safety practices, but notable gaps in formal training and knowledge especially regarding chemical hazards and ergonomics remain. High levels of musculoskeletal problems and stress highlight the need to integrate structured occupational-safety education, practical training, and wellness support into the curriculum.