نتایج جستجو برای: molar
تعداد نتایج: 37123 فیلتر نتایج به سال:
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....
Production of heavy metals by human activity is caused soil contaminations. The polyamines are used to reduction of heavy metal effects. In this study, the effects of lead and spermidine on Salvia officinalis L. were tested. A factorial experiment was conducted in a completely randomized design with three replications. Lead nitrate at concentrations of 0, 125, 250 and 1000 micro molar and sperm...
ABSTRACT: It's been more than a century that third molar has drown the attention of orthodontists . This attention has been based on two main reasons: 1- The probable role of third molar in making late crowding or Recrowding of lower anterior teeth 2- Evaluation of causative factors and prediction of impaction of this tooth and orthodontic 's help to prevention of problems caused by this too...
the gross and microscopic anatomy of the molar salivary gland of the domestic cat was studied. in this research, five pair of molar glandsfrom five male adult cats were used. in cat, the molar gland was elongated rectangle shape and was located obliquely in the submucosal fossa of the inferior lip, near the oral commissure. the dorsal border of the molar gland was attached to the masseter muscl...
introduction: comparison of the relationships and distance between maxillary root tips and the maxillary sinus floor using oral panoramic in the dolichocephalic and brachycephalic compared to mesocephalic individuals. methods: oral panoramic images from 300 individuals were analyzed and the relationships and distance between the maxillary root tips and the sinus floor was assessed by qualitat...
introduction:there are conflicting reports on the effects of surgical removal of impacted mandibular third molars on the periodontium of the adjacent teeth. the aim of this study was to compare the condition of the periodontium six months after extraction of impacted mandibular third molars with baseline values. methods: fifty patients with mesioangular impacted mandibular third molarsparticipa...
introduction: impaction of third molars can be associated with a number of sequelae, each requiring a different type of treatment. the purpose of this study was to assess the changes in the position of lower third molars following extraction and non-extraction orthodontic treatments. methods: pre- and post-treatment panoramic radiographs of 26 class i malocclusion patients (4 male and 22 female...
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