نتایج جستجو برای: second premolar

تعداد نتایج: 622401  

2014
Abhilash. R. Krishnan Sarika. S. Kamal Annie Rajan

The otherwise considered being one of the smallest and weakest teeth in the arch, mandibular second premolars have been found to almost double its size in macrodontia. Such anomalies of morphological alterations have caused the teeth to be more weak and prone to diseases, as accredited to the increased surface area and particular morphology. Bilateral mandibular second premolar macrodontia is a...

2014
Zahra Fathi Saeed Rahimi Reza Tavakoli Mahsa Amini

Presence of extra roots and canals should be considered before initiation of root canal treatment for the success of endodontic treatment. A mandibular second premolar with three separate roots is very rare and its prevalence has been reported to be around 0.1%. This case report explains non-surgical endodontic treatment of a mandibular second premolar with three separate roots and three separa...

1998
Chun-Li Lin Chih-Han Chang Chia-Shin Cheng Huey-Er Lee

The finite element method (FEM) has established itself as a powerful tool in biomechanics. However, developing a finite element three dimensional mesh for irregular geometry object is still a labor intensive task hence limits the usage of the three dimensional analysis for dental structures. This study presented an automatic procedure to generate the three dimensional finite element mesh of a m...

Journal: :journal of dental research, dental clinics, dental prospects 0
zahra fathi postgraduate student of endodontics saeed rahimi professor of endodontics reza tavakoli postgraduate student of oral medicine mahsa amini postgraduate student of endodontics

presence of extra roots and canals should be considered before initiation of root canal treatment for the success of endodontic treatment. a mandibular second premolar with three separate roots is very rare and its prevalence has been reported to be around 0.1%. this case report explains non-surgical endodontic treatment of a mandibular second premolar with three separate roots and three separa...

Journal: :Journal of endodontics 1992
D Denio M Torabinejad L K Bakland

A lack of agreement exists in the literature regarding the anatomical relationship of the mandibular canal to its surrounding structures such as the root apices. The purpose of this investigation was to study the spatial relationship of the mandibular canal to the posterior teeth in dried human mandibles. Twenty-two mature dried mandibles were sectioned through the root apices of the first and ...

Journal: :journal of dentistry, tehran university of medical sciences 0
nasrin esfahanizadeh associated professor, department of periodontics, islamic azad university, dental branch, member of dental implant research center, tehran university of medical sciences, tehran, iran. damoun shahraki post graduate student, department of orthodontics, islamic azad university, dental branch, tehran, iran. hamidreza daneshparvar assistant professor, legal medicine research center, tehran, iran. ahmad reza talaei pour professor and chairman, department of radiology, islamic azad university, dental branch, tehran, iran. mohammad ali saghiri assistant professor, department of dental material, member of craniofacial research center, islamic azad university, dental branch and kamal asgar research center (karc), tehran, iran. ahmad sheibaninia assistant professor, fellow of orthosurgery, department of orthodontics, azad university dental school, tehran, iran.

objective : the aim of this study was to assess the amount of interdental bone in posterior areas of the mandible for placing orthodontic mini-implants to provide and control anchorage in orthodontic treatment. materials and methods : the amount of interdental bone in areas between the second premolars and first molars, first and second molars on the right and left sides of the mandible were de...

2015
Duygu Goller Bulut Emre Kose Gozde Ozcan Ahmet Ercan Sekerci Emin Murat Canger Yıldıray Sisman

OBJECTIVE The aim of the present study is to assess the root and root canal morphology of maxillary and mandibular premolars in a Turkish population by using cone beam computed tomography (CBCT). MATERIALS AND METHODS In this study, CBCT images of 2134 premolars (987 maxillary, 1147 mandibular) were obtained from 404 patients. Details of gender, age, number of roots and canals, and canal conf...

Journal: :International journal of oral health dentistry 2023

Impacted molars are frequently seen in clinical circumstances. When compared to other teeth, wisdom teeth and the cuspid discovered be significantly more impacted. Aside, impacted have a likelihood of extreme significant issues, which include fostering growth cysts consequences because their close association nasal oral cavity, addition debilitating nature likely functioning disruption they can...

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