Purpose: Taurodontism and root dilaceration are developmental anomalies. Both taurodontism and dilaceration might be related with cleft lip and palate (CLP). This study aimed to investigate the prevalence of taurodontism and root dilaceration, in the children with CLP. Materials and Methods: Cone beam computed tomography images of 200 children (100 cleft 100 healthy) with cleft lip and palate were evaluated retrospectively. Taurodontism level was divided into three subtypes as hypertaurodont, mesotaurodont and hypotaurodont. Root dilaceration was recorded if the tooth has completed apexification process. Results: The frequency of taurodontism was found to be 30% in children with CLP and 12% in the control group. The frequency of root dilaceration was found to be 31% in children with CLP and 12% in children without CLP. Incidence of both root dilaceration and taurodontism was found higher in children with CLP (p

Previous cases of dental barotrauma have been reported in pilots and divers. We report a case of dental barotrauma and barodontalgia in a diving physician accompanying patients during hyperbaric oxygen treatment, and due to pressure changes in the hyperbaric chamber. The physician developed sharp pain localised to the right maxillary molars but radiating to the face, ear and head during decompression from 243 kPa (2.4 atmospheres absolute). The pain intensified following completion of decompression and was consistent with irreversible pulpitis. Clinical examination and panoramic radiography suggested fracture of a heavily restored tooth due to barotrauma. This was managed by tooth extraction. The physician subsequently discontinued accompanying the patients during their hyperbaric oxygen treatment sessions. Dentists and maxillofacial surgery specialists suggest waiting for a minimum of four weeks or until the tooth socket and/or oral tissue has healed sufficiently to minimise the risk of infection or further trauma before exposure to further pressure change. Although seemingly rare, and despite the comparatively slow pressure changes, dental barotrauma can occur in hyperbaric chamber occupants.

Introduction: In this study, we aimed to examine dental barotrauma and temporomandibular joint (TMJ) complaints in a large group of divers. Method: This survey study included scuba divers older than 18. The questionnaire contained 25 questions about the demographic characteristics of divers, dental health behaviors, and diving-related dental, sinus and/or temporomandibular joint pain Results: The study group consisted of 287 instructors, recreational and commercial divers (mean age 38.96 years) (79.1% males). A total of 46% of divers reported a frequency of tooth brushing less than twice a day; 28% never receive a routine dental examination; 22.6% experienced dental pain after and/or during diving, mostly in the upper posterior teeth (40%); 17% required dental treatment; 77% of these cases are restoration fracture. TMJ symptoms after diving were statistically significantly higher in women (p=0.04). Jaw and masticatory muscle pain in the morning (p<0.001) limitation of mouth opening (p=0.04) and joint sounds in daily life (p<0.001) were recorded as exacerbated after diving; the results were found to be statistically significant. Conclusion: In our study, the localization of barodontalgia was consistent with the distribution of caries and restored tooth areas in the literature. Dive-related TMJ pain was also more common in those with pre-dive problems such as bruxism and joint noise. Our results are important to remind us of the necessity of preventive dentistry practices and early diagnosis of problems in divers. Divers should take personal precautions, such as brushing their teeth twice a day and avoiding the need for urgent treatment. The use of a personalized mouthpiece is also recommended for divers to prevent dive-related temporomandibular joint diseases.