Statements of Problem: Natural head position (NHP) provides the key for meaningful cephalometric analyses because an extracranial reference line is used instead of intracranial reference lines, known to be subject to ...

Statement of Problem: Fixed orthodontic appliances are considered to be a clinical risk factor in terms of gingival and enamel integrity, because of plaque accumulation around the bracket bases which increases the levels ...

Statement of Problem: Infection control is the main step of prevention in dentistry. Effects of disinfectant solution must be evaluated in this process.  Purpose: The aim of this study was to evaluate the disinfecting ...

Statement of Problem: Canal preparation is one of the most important and time- consuming steps in endodontic treatment of primary teeth. Regarding the difficulties in behavior management of some children, rotary (nickel-titanium) ...

Statements of Problems: Head and neck squamous cell carcinoma is the sixth most common cancer worldwide. Inactivation of one or more components of the P53 network is a common event in human neoplasia. In head and neck ...

Statement of Problem: Difficulties in sterilizing impressions by traditional methods have led to chemical disinfections as an alternative, and some studies have shown that some methods may adversely affect impressions.Purpose: ...

Nowadays transplantation is widely used to manage end organ failure, the way that saves patient's lives and increases their survival rate. But it has some complications such as posttransplant malignancies; one of them is ...

Statement of Problem: Because commonly used obturating materials can not provide hermetic seal against saliva and microorganisms in the root canal system, thus it has been suggested that the use of intraorifice sealing of ...

Statement of Problem: The main goal of root canal therapy is total elimination of bacteria from root canals. Studies have shown that the cleaning and shaping of root canals can not complexly eliminate these bacteria from ...

Nowadays, restoring teeth with minimal sacrifice of sound tooth structure forms the basis of restorative practice. To achieve this concept, adhesives should essentially provide strong and durable bonding. Bonding to enamel ...

Statement of Problem: Treatment with or without extraction in class II division 1 cases and their effect on the skeletodental and soft tissues in orthodontic treatment are in debate. Assessing the changes of hard and soft ...

Statement of Problem: The most common major defect of the lip and palate is clefting. Clefting occurs due to failure of fusion between embryologic structures. Tooth size abnormalities are common in these patients.Purpose: ...

Statement of Problem: Extraction of mandibular third molar is one of the routine surgical procedures in dentistry. Disestesia because of damage to sensory bundles of inferior-alveolar nerve is one of the complications which ...