Coincidence of compound odontoma and cemento ossifying fibroma; a rare case report

Objective: cemento-ossifying fibroma defines as a relative rare osteogenic neoplasm of the jaw. This tumor includes fibrous and osseous components. Odontoma is the most common odontogenic tumor containing enamel ,dentin ,cementum and pulp tissue. in this paper we report a rare case of ossifying fibroma associated with compound odontoma in the mandible

Case: A 37-years-old woman was referred to Oral Medicine department, Shahid Beheshti Dental School with complaint of swelling in the anterior part of the mandible, over 6 years period. Clinical examination revealed mandibular enlargement in right -anterior region with labial and lingual expansion and canine missing . panoramic view showed a large mixed radiolucent - radiopaque lesion associated with impacted canine.The differential diagnosis include calcifying odontogenic cyst [COC] and cemento-ossifying fibroma[COF]. Histopathologic examination established diagnosis of COF with multiple compound odontoma

Conclusion: the relationship between the occurrence of these two lesions is not clear and more studies are needed to establish the relationship between them

Quality of the results section of original dental articles published in national Farsi and international English journals

Objective: Lack of scientific writing skills is one major problem encountered for publication of research results of Iranian scientists in accredited journals. As the result, many research projects or dissertation findings remain unpublished. This study aimed to assess the quality of writing of the "results" section of some original articles published in Iranian Farsi and international English journals

Methods: This analytical, cross-sectional study was conducted on 64 dental articles published in 3 international English and 3 Iranian Farsi journals. Selection of journals was non-random but articles were selected randomly based on specific criteria. A checklist containing 32 criteria regarding general statistics, context of the results, statistical tests, tables, charts and graphs was prepared. Obtained data were analyzed by SPSS 10 using Fisher's exact and chi square tests

Results: Farsi articles met 64.1% and English articles met 65.8% of the checklist criteria. No significant difference was found in the quality of the results section of Farsi and English papers [p>0.05]

Conclusion: Most papers did not provide adequate details in the results section to help readers better comprehend the subject

Effect of vitamin C on salivary total antioxidant capacity in smokers

This study was designed to elucidate the effect of ascorbic acid on salivary total antioxidant capacity in smokers. In this single blind crossover clinical trial, the whole unstimulated saliva of 30 smokers, who were randomly divided into two groups, was collected. In the first phase after the saliva collection, one group of patients took 500 mg of vitamin C powder, for 3 weeks. Then, saliva of all patients was collected. After a one-week wash-out period, vitamin C was given to the other group. The collection of saliva was done after 3 weeks. Total antioxidant capacity was measured. Statistic evaluation was performed by Repeated Measured ANOVA, Independent sample t-test and Covariate test. The mean of total antioxidant capacity with and without using vitamin C was 0.511 +/- 0.155 [U/mL] and 0.555 +/- 0.171 [U/mL], respectively. This variability was not significant [p = 0.605]. Oxidative stress from cigarette smoke was not decreased significantly with using vitamin C