بررسی آناتومی و مورفولوژی سیستم کانال ریشه‌ی دندان‌های آسیای سوم فک بالا در یک جمعیت انتخابی در شهر کرمان
نوع مقاله : Original Articles
نویسندگان
1 دانشیار، گروه اندودنتیکس، دانشکده دندان‌پزشکی، دانشگاه علوم پزشکی کرمان، کرمان، ایران
2 دانشیار، گروه رادیولوژی دهان، فک و صورت، دانشکده دندان‌پزشکی، دانشگاه علوم پزشکی کرمان، کرمان، ایران
3 دستیار تخصصی، گروه اندودنتیکس، دانشکده دندان‌پزشکی، دانشگاه علوم پزشکی کرمان، کرمان، ایران
4 دندانپزشک، کرمان، ایران
چکیده
عنوان مقاله [English]
Anatomic and morphologic evaluation of root canal system of maxillary third molars in a population in Kerman
چکیده [English]Introduction: A thorough knowledge of the root canal morphology has a key role in successful endodontic therapy. The aim of this study was to investigate the root and root canal morphology of maxillary third molars in Kerman, a province in south east of Iran in 2010‒2011. Materials and Methods: One hundred fifty extracted maxillary third molars were collected randomly from different dental clinics in Kerman. Then access cavity was prepared in each tooth and the tooth pulp was completely removed by placing the teeth in 2.5‒3% NaOCl solution for 12‒24 hours. Then India ink was injected into the root canal system through the access cavity. After 12 hours the samples were decalcified in 5‒10% nitric acid, dehydrated in ascending concentrations of 70%, 95% and 100% ethanol for one day and cleared in 5% methyl salicylate. The following features were evaluated: the number and morphology of roots, number of canals per root, root canal configuration according to Vertucci classification and the incidence of dilacerated roots and C-shaped canals. Results: The prevalence rates of three-rooted and two-rooted teeth were 42.6% and 39.3%, respectively; 10 % of the samples had 1 root and 39.3% had 2 roots. In this investigation, 12.8% of the teeth had at least 1 dilacerated root. The incidence of C-shaped canal was 3.5% in this study. Conclusion: Based on the results of the present study, 3 roots seems to be the most common anatomy in the Kermani population under study. Key words: Maxilla, Root canals, Third molars
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