thorough knowledge of the morphology and internal anatomy of the root canal system is essential, because it determines the successful outcome of endodontic treatment. the main goal of endodontic treatment is to prevent apical periodontitis and/or to promote the healing of periapical lesion. presence of two canals or roots on the palatal side of the first maxillary molar has rarely been reported...

introduction: the purpose of this study was to evaluate the number of distal roots and canals in mandibular first molars and their internal anatomy radiographically within iranian population. materials and methods: a total of 310 distal roots of mandibular first molars were incorporated in this study and evaluated in terms of number of roots and number and types of canals. root canal systems we...

anatomy of the root canal system always effects endodontic treatment outcome. mandibular premolar teeth show extreme variations in root canal morphology. first premolars usually exhibit basic one root and one canal anatomy. the occurrence of three roots in mandibular first premolar has not been commonly reported in literature. this article reports a case of successful nonsurgical endodontic man...

introduction: the complexity of the root canal system presents a challenge for the practitioner. this systematic review evaluated the papers published in the field of root canal anatomy and configuration of the root canal system in permanent maxillary second molars. methods and materials: all articles related to the root morphology and root canal anatomy of the permanent maxillary second molars...

a case of unusual root morphology is presented to demonstrate anatomic variations in mandibular second molars. the most common configuration of mandibular second molar is to have two roots with three root canals; however mandibular molars may have many different combinations. endodontic therapy was performed in a mandibular second molar with 3 separate roots 2 located mesially and one distally....

introduction: it is essential for clinicians to have knowledge about root canal configuration, although its morphology varies largely in different ethnicities and even in different individuals within the same ethnic group. the current study reviewed the root canal configuration of root canals in mandibular first and second premolars among iranian population based on independent epidemiological ...

the maxillary first premolar may present large number of anatomic variations. the clinician should be aware of the configuration of the pulp system. maxillary first premolars usually have two canals. the incidence of three canals in these teeth is quite rare. this case report presents the diagnosis and clinical management of a maxillary first premolar with two distinct canals in the apical thir...

successful endodontic therapy depends on adequate mechanical and chemical debridement of the canal which requires knowledge of the canal morphology. conventional radiography has been used to evaluate the canal type; however, direct digital radiography has recently been practiced for this purpose due to the shortcomings of conventional radiography. the aim of the present study was to compare the...

one of the growth limiting factors of onion plants is root and basal plate rot disease, caused by fusarium oxysporum f. sp. cepae. in this research, eight iranian onion genotypes, azarshahr red, ghom white, herssin, isfahan dorcheh, kashan white, nishabour ishaghabad, yazd abarkoh, zanjan gholigheseh and two commercial genotypes, texas erly grano and yellow sweet spanish were investigated. geno...

a detailed knowledge of root canal anatomy is a prerequisite for successful endodontic treatment. such information is highly dependent upon the ethnicity of the population of interest. lack of sufficient national information concerning internal anatomy can lead clinicians to increase their rate of treatment success. the aim of this study was to evaluate external root morphology and root canal a...