Are YouTube™ videos a reliable source of information about genioplasty?

BACKGROUND: The aim of this study was to evaluate the accuracy and quality of the information content of popular YouTube™ videos about genioplasty. MATERIALS AND METHODS: The keywords "genioplasty, sliding genioplasty and genioplasty surgery" were searched on YouTube™. It was filtered by the view count and the first 70 videos that met the inclusion criteria were evaluated. Each video was scored as ranging from 0 to 8 point and the videos were classified as bad, poor, good and excellent content. Kruskal-Wallis test was performed for statistical analysis. Intra-observer and inter-observer agreement were calculated Cohen's Kappa index. RESULTS: The videos uploaded by the individuals were significantly higher total video duration (P<0.001), number of comments (P=0.048) and viewing rate (P=0.036) than the others and the videos generally included their treatment journey. Most of the videos included bad information content. The number of likes (P=0.037), dislikes (P=0.037) and the interaction index (P=0.026) of the bad information content videos were significantly higher than the others. The other parameters did not show a significant difference (P>0.05). CONCLUSION: The results of this study would suggest that YouTube™ is not currently an appropriate source of information about genioplasty for the patients.

Study of kissing molars in Turkish population sample.

BACKGROUND: "Kissing" or "rosetting" of molars are extremely rare phenomenon with limited cases in the dental literature. It was first described in 1973, refers to contacting occlusal surfaces of the impacted mandibular second and third molars. The aim of the present study was to report the incidence of kissing molars (KMs), classification, incorporated pathologies, and its management in a group of Turkish population. MATERIALS AND METHODS: The panoramic radiographs of the patients who referred to Gaziantep University Faculty of Dentistry between January 2012 and November 2014 for surgical treatment retrospectively were evaluated. The cases of KM were determined and evaluated with respect to its type, combined pathology, and treatment. RESULTS: Of the 6570 radiographs included in the study, 4 were seen to present as KM illustrating 0.060% of the sample. Three cases were Class II (0.045%), and only one case was encountered as Class III (0.015%). The mean age at the time that the KM teeth were identified was 34 years with a range from 29 to 40 years. Three of the patients were male, one of the patients was female, and all cases were seen unilaterally. One of the KMs was associated with dentigerous cyst formation. CONCLUSION: KM is a very rare clinical condition and few treatment options described. Early detection is essential to preclude complications and to provide more successful treatment. In this study, we evaluated the cases of KM and review of the literature also presented.

Biomechanical comparison of transoral and transbuccal lateral cortical plate fixation for the management of mandibular angle fractures.

OBJECTIVES: The purpose of this experimental study was to compare the biomechanical behaviors of two different types of osteosynthesis that are used in the treatment of mandibular angle fractures. MATERIALS AND METHODS: Twenty synthetic polyurethane human mandible replicas, with medullar and cortical portions, were used in this study. These polyurethane hemimandibles were randomly divided into two groups (n = 10). The transbuccal group (Group A) was fixed with 7 mm long self-tapping 2.0 mm titanium screws at 85° to the reference line and the transoral group (Group B) was fixed with the same screws at 15° to the reference line. All testings were performed on a servo-hydraulic testing machine. The data were transmitted directly from the load cell to a computer, which showed the emergent results of the material characteristics under resisted forces as a graphic containing force and displacement. The peak point loading and displacement for each subject were measured. RESULTS: The comparison between the groups was analyzed with an independent-samples t-test, and P < 0.05 was considered to be significant. The results show that there were no significant differences between the groups for the peak loads and displacement values at the peak loads. CONCLUSION: The results of this experimental study demonstrated that there were no significant differences between the transbuccal and transoral methods in terms of fixation stability. In other words, the screw position and angle seemed to no have influence on the fixation stability in single miniplate treatments of a mandibular angle fracture.

Case report of giant sialolith (megalith) of the Wharton's duct.

Sialolithiasis is the most common disease of salivary glands. Its estimated frequency is 1.2% in the adult population. Sialoliths most commonly occur in the submandibular glands. The sublingual gland and minor salivary glands are rarely affected. The sialolith usually measures from 1 to <10 mm. Giant sialoliths are classified as those exceeding 15 mm in any one dimension. In literature, large sialoliths or megalith (> mm) of Wharton's duct have rarely been reported. This case report describes a patient presenting with an unusually large sialolith (megalith) of Wharton's duct, which was 37 mm ×16 mm in the size, the subsequent patient management, the etiology, diagnosis, and its treatment.

Assessment of root surfaces of apicected teeth: a scanning electron microscopy evaluation.

OBJECTIVES: The aim of this study was to determine the apical surface characteristics and presence of dental cracks in single-rooted premolars, resected 3.0 mm from the root apex, using the Er: YAG laser, tungsten carbide bur, and diamond-coated tip, by scanning electron microscopy (SEM). EXPERIMENTAL DESIGN: Thirty single-rooted premolar teeth were collected. The instrumented and obturated teeth were divided into three groups according to the root resection method (2.94 µm, 100 mj, 20-Hz Er: YAG laser, plain tapered fissure tungsten carbide bur at a low speed of 40,000 rpm, or a diamond-coated SG6D tip coupled to the handpiece of a conventional ultrasound device). The specimens were prepared for SEM and analyzed by the Kruskal-Wallis and Mann-Whitney statistical tests. RESULTS: The SEM images showed that tungsten carbide burs produced significantly smoother resected root surfaces than the diamond-coated tip. There was no statistically significant difference between the Er: YAG and tungsten carbide bur groups. The analysis of scores obtained for the cut quality by the Kruskal-Wallis test revealed no significant differences among the groups. In our study, five teeth had no cracks after the apical resection. The mean number of cracks per tooth was 3.5 ± 1.780 (Er: YAG laser group), 2.5 ± 1.716 (tungsten carbide bur group), and 4.5 ± 2.593 (diamond-coated tip group). CONCLUSIONS: Under the tested conditions smoother surfaces were observed in the groups treated with the tungsten carbide bur and Er: YAG laser when compared with the diamond-coated tips.