This multicenter study aimed to identify the different implant-and patient-related risk factors for long-term short dental implant success. Through a retrospective chart review of three centers, patient information regarding demographic variables, smoking habits, history of periodontitis, systemic diseases, and medications in addition to the parameters for short implant placement including implant manufacturer, design, anatomical location, diameter and length, and type of placement was collected. For statistical analysis, univariate regression models were used at the implant and patient levels. A total of 460 short implants placed in 199 patients followed up for up to 9 years were reviewed. Survival rates of the short implants were 95.86% and 92.96% and success rates were 90% and 83.41% for implant-and patient-based analysis, respectively. Peri-implantitis was reported as the primary cause of short dental implant failure (34/46, 73.91%). Univariate regression models revealed that female sex was strongly related to short implant success. In addition, smoking and history of periodontitis were found to have a significant negative influence on short implant success at the implant and patient levels. Taken together, these results support the use of short implants as a predictable longterm treatment option; however, smoking and history of periodontitis are suggested to be the potential risk factors for short implant success. Therefore, clinicians need to assess these potential risk factors and make treatment decisions accordingly.

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The objective of this study was to evaluate the efficacy of cryosurgery on 134 different benign oral lesions in 90 patients. All lesions were treated every 2 weeks until complete regression of the lesion had been achieved. Patients were examined at 2, 7, and 10 days, 2 and 4 weeks, and 3 and 6 months after the cryosurgery. The relationship between the number of cryosurgery applications to achieve complete regression and the type oflesions was assessed for statistical significance by one-way analysis of variance and with the Scheffe test. The mean application number of the cryosurgery was 1.82±0.49 for fibroma, 2.35±1.44 for vascular lesions, 1.50±0.70 for mucocele, 2.65±1.18 for lichen planus lesions. The difference between the type of the lesion and number of application was statistically significant for all groups (p< 0.05). Our data prove that a significantly fewer number of cryosurgery treatments are required to achieve complete regression for fibroma and mucocele lesions compared to lichen planus lesions. During the follow-up period, only 7 lichen planus lesions of 76 lesions recurred.

Objectives: The aim of this study was to evaluate the demographics and characteristics of the patients treated for traumatic bone cyst (TBC). Materials and Methods:A retrospective review was conducted to determine the radiological, clinical and demographic characteristics of patients with TBC who were surgically treated over a 2-year period using data retrieved from computerized databases. Results:The study sample consisted of 22 patients (24 lesions in total) with mean age of 22.9 years. All lesions were located in the mandible (16 in anterior mandible, 8 in posterior mandible) and diagnosed incidentally during routine dental examinations. There was no statistically significant difference between male and female patients in demographic characteristics. All patients were followed up for 6-18 months with uneventful healing. Conclusions:TBCs should be kept in mind during examination of radiolucent lesions of the mandible particularly in younger patients. Along with the histopathological examination, clinical and radiological findings, symptoms of the patients, and surgeon's experience should be considered for a definitive diagnosis.

It can be concluded that HS inhalation equivalent to pathologic halitosis producing level in humans may lead to systemic effects, particularly heart or liver damage in rats.