AIM To evaluate ex vivo the accuracy of two electronic apex locators during root canal length determination in primary incisor and molar teeth with different stages of physiological root resorption. METHODOLOGY One calibrated examiner determined the root canal length in 17 primary incisors and 16 primary molars (total of 57 root canals) with different stages of root resorption based on the ac...

Root resorption is a pathological process that causes a shortening of the dental root. Although this condition is generally asymptomatic and missed in diagnosis, it may result in tooth mobility and even tooth loss if not diagnosed and treated early (Ahangari et al., 2010). In orthodontics, induced inflammatory root resorption is a form of pathologic root resorption related to the removal of hya...

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statement of the problem removal of impacted third molars is the most common oral surgical procedure. many investigators have questioned the necessity of removal in patients who are free of symptoms or associated pathologies. there are currently no data on the prevalence of impacted teeth and associated pathologies in the hamadani population. purpose the aim of this study was to assess the stat...

introduction: the purpose of this study was to investigate root surface ph changes over a period of 4 weeks following treatment with calcium-hydroxide dressing of intact and resorbed roots. materials & methods: the canals of 30 single-rooted teeth were instrumented with protaper rotary files and randomly divided into 2 experimental groups of 14 each, and one control group with two samples. to s...

Contemporarily, the ravages of tooth resorption are seen daily around the world. While some teeth can be retained many are lost to this process. Although many types of resorptive processes have been identified, the etiological factors involved in this malady are not often clear and both speculation as to it source and clinical management have received a great deal of empirical explanations and ...

objective: orthodontically induced inflammatory root resorption (oiirr) is considered to be an important sequel associated with orthodontic tooth movement (otm). otm after socket preservation enhances the periodontal condition before orthodontic space closure. the purpose of this study is to investigate the histologic effects of nanobone®, a new highly nonsintered porous nano-crystalline hydrox...

PURPOSE The purpose of this study was to examine the patient- and treatment-related etiologic factors of external root resorption. MATERIALS AND METHODS This study consisted of 163 patients who had completed orthodontic treatments and taken the pre- and post-treatment panoramic and lateral cephalometric radiographs. The length of tooth was measured from the tooth apex to the incisal edge or c...

A common question about root resorption is raised in orthodontic practice: What is more important, the intensity of force or its distribution along the root, periodontal and alveolar structures? Diffuse distribution of forces applied to periodontal tissues during tooth movement tends not to promote neither extensive areas of cell matrix hyalinization nor significant death of cementoblasts that ...

background: socket preservation after tooth extraction is one of the indications of bone grafting to enhance preorthodontic condition. the aim of this study is to determine the effects of socket preservation on the immediate tooth movement, alveolar ridge height preservation and orthodontic root resorption. materials and methods: in a split-mouth technique, twelve sites in three dogs were inves...