Apical Debris Extrusion with Conventional Rotary and Reciprocating Instruments.

Introduction: The aim of the present study was to compare the amount of apical debris extrusion after preparation using hand files, reciprocating files, and full rotary nickel-titanium systems.

Methods And Materials: One hundred extracted human mandibular molars with two separated canals in mesial root were divided into five groups and prepared using reciprocating systems (Reciproc file and Safesider endodontic reamers file), full rotary systems (Mtwo and Neoniti A1 files) and hand instrumentation systems. Endodontic access was prepared and a #15 K-file was passed beyond the apex of the mesiobuccal canal by 1 mm to ensure the canal patency.

Comparison of Salivary Antioxidants in Children with Primary Tooth Abscesses before and after Treatment in Comparison with Healthy Subjects.

Aim: The aim of this study was to compare the total antioxidant capacity (TAC) of children with primary molar abscesses before and two weeks after extraction of the infected tooth. Materials and methods: Forty one children aged between 3-6 years participatesd in this cross sectional study. The antioxidant activity of saliva was investigated in 20 patients with tooth abscesses affecting one of the first primary molars before and after tooth extraction in the case group and once in 21 children with no caries or dental problems in the control group.

Apical Extrusion of Intracanal Bacteria with Single File and Multifile Rotary Instrumentation Systems.

Aims And Objectives: Instrumentation techniques may cause extrusion of microorganisms and their products into the periapical region resulting inflammation and treatment failure. The aim of this study was comparing the apical bacterial extrusion in canals prepared with single file versus multiple file rotary systems.

Materials And Methods: Ninety-two human single-rooted mandibular first premolars were used.

Effect of education based on the theory of planned behavior on adoption of oral health behaviors of pregnant women referred to health centers of Birjand in 2016.

Objective: Oral health of pregnant women is very important because of the adverse effects of pregnancy on the oral hard and soft tissues and vice versa. The aim of this study was to evaluate the effect of education on oral health behaviors of pregnant women based on the theory of planned behavior in Birjand.

Materials And Methods: This quasi-experimental study was carried out among 150 pregnant women admitted to health centers, who were selected using simple sampling (75 females in each case and control group).

Histologic and histomorphometric evaluation of two grafting materials Cenobone and ITB-MBA in open sinus lift surgery.

Aims And Objectives: Alveolar ridge reduction caused after tooth extraction can be minimized through ridge preservation and application of graft materials. The aim of this study was to compare the histologic and histomorphometric aspects of bone particulated allografts, Cenobone and ITB-MBA, in the reconstruction of vertical alveolar ridge after maxillary sinus augmentation.

Materials And Methods: This clinical trial was performed among 20 patients.

Evaluation of developmental dental anomalies in digital panoramic radiographs in Southeast Iranian Population.

Objectives: The objective of this study was to evaluate the prevalence of dental developmental anomalies in digital panoramic radiographs of the patients referred to the Zahedan medical imaging center and to evaluate the frequency of anomalies regarding the disorders in shape, position and number in the Southeast of Iran.

Materials And Methods: A total of 1172 panoramic radiographs from 581 males and 586 females aged over 16 years were obtained from the files of the Zahedan medical imaging center between the years of 2014 and 2015. The selected radiographs were evaluated in terms of the anomalies such as dilacerations, taurodontism, supernumerary teeth, congenitally missing teeth, fusion, gemination, tooth impaction, tooth transposition, dens invagination, and peg lateral.

In-vitro evaluation of coronal microbial leakage after post space tooth preparation.

Background: The aim of this in-vitro study was to determine the occurrence of coronal microbial leakage in endodontically treated teeth that have been prepared for post space, and also determine the minimum and maximum time required for the permanent restoration of the teeth after post space preparation.

Methods: This experimental study was conducted using a simple random sampling. Fifty extracted single-root teeth with approximately the same length were selected for this study.

Evaluation of General Dentists' and Dental Specialists' Knowledge about Oral Cancer in South Khorasan-Iran 2014.

Background: Oral cancer is one of the most prevalent cancers and one of the top ten causes of death in the whole world. Most oral cancers are diagnosed at late stages. Since dentists play a critical role in early detection of oral cancer, they should be knowledgeable and skillful in oral cancer diagnosis.