Comparison of the efficiency of alveolar decortication and low level laser therapy on orthodontic tooth movement and alveolar metabolism in rats.

Background/purpose: Reducing orthodontic treatment duration has many advantages for both clinicians and patients. This study was designed to compare the effects of alveolar decortication and low level laser therapy methods on tooth movement rate and alveolar bone metabolism.

Materials And Methods: A total of 42 Wistar albino rats were divided into three main groups as: Alveolar decortication (AD), low level laser therapy (LLLT) and only orthodontic force (F).

Healing of Oral Lichenoid Lesions following Replacement of Dental Amalgam Restorations with Feldspathic Ceramic Inlay-Onlay Restorations: Clinical Results of a Follow-Up Period Varied from Three Months up to Five Years.

Objective: Previous studies have shown the effect of amalgam removal on the healing of oral lichenoid lesions (OLLs); however, no specific replacement materials have been suggested. The present series evaluated long-term results following the complete replacement of amalgam restorations with feldspathic ceramic inlay-onlay restorations for a group of patients with OLLs whose lesions were suspected to be related to amalgam restorations.

Materials And Methods: Twenty-four patients who had OLLs suspected to be related to their amalgam restorations were initially recruited.

Effects of polymethylmethacrylate on the stability of screw fixation in mandibular angle fractures: A study on sheep mandibles.

Malfixed miniplates can impair fracture healing, and the screw pilot holes may widen during repeated fixation trials. This study explored the extent to which screw fixation of mandibular angle fractures could be improved by augmenting the drilling holes with polymethylmethacrylate (PMMA). We measured stabilization by recording specimen displacement under a vertical force of 50 N applied using a hydraulic tester.

The Accuracy of New and Aged Mechanical Torque Devices Employed in Five Dental Implant Systems.

Purpose: Friction-style and spring-style torque wrenches are used to tighten implant abutments and prosthetic screws. The mechanical stability of these torque wrenches is crucial for the implant-abutment connection. The purposes of this study were to assess the performance of five brands (Straumann, Zimmer, Implant KA, Bredent, and Biohorizons) of wrench and to evaluate possible changes in applied torque values of aged wrenches.

Myxofibroma of the maxilla, current concepts, and differential diagnosis.

Odontogenic myxomas represent a small portion of all odontogenic tumors. A myxoma of the bone is a rare lesion that occurs almost exclusively in the jaws. An odontogenic myxoma has a variable clinical and radiological appearance, and it should be considered in the differential diagnosis of radiolucent and mixed radiolucent-radiopaque lesions of both jaws in all age groups.

In Vitro Evaluation of Manual Torque Values Applied to Implant-Abutment Complex by Different Clinicians and Abutment Screw Loosening.

Preload is applied to screws manually or using a torque wrench in dental implant systems, and the preload applied must be appropriate for the purpose. The aim of this study was to assess screw loosening and bending/torsional moments applied by clinicians of various specialties following application of manual tightening torque to combinations of implants and abutments. Ten-millimeter implants of 3.

Monostotic fibrous dysplasia presenting in maxilla: a case report.

Fibrous dysplasia (FD) is a bone disorder in which fibrous tissue replaces normal bone. FD can be monostotic (10%-25%) or polyostotic (50-90%) and is typically diagnosed accidentally on radiographs. Craniofacial lesions are typically unilateral and are diagnosed by clinical assessment and radiographic evaluation.

Tooth extraction from a patient with cavernous hemangioma in maxillofacial region: case report.

Hemangiomas are benign vascular tumors which represent a rapid growth pattern followed by the involution phase. Generally, they are located in the soft tissues and are usually diagnosed in the first decade of life. Hemangiomas are mostly asymptomatic and rarely affect jaw bones.

Large rhinolith causing nasal obstruction.

Rhinoliths are calcified masses located in the nasal cavity and may cause symptoms such as nasal obstruction, fetid odour and facial pain. They are usually diagnosed incidentally on radiographic examinations or depending on the symptoms. In this paper we report a 27-year-old Caucasian woman with a calcified mass in the right nasal cavity causing nasal obstruction, anosmia and facial pain.

Intraosseous and extraosseous variants of dentinogenic ghost cell tumor: two case reports.

This paper aims to present both intraosseous and extraosseous variant of dentinogenic ghost cell tumor as well as a review of the literature. An 11-year old female patient presented a swelling and pain in the molar area of the mandible and a 15-year-old female patient reported a complaint of swelling in the right vestibular region of teeth 12 and 13(FDI 2-digit classification system). Microscopic examinations showed similar features which characterized by ameloblastoma-like islands of epithelial cells, containing numerous ghost cells.

Focal cemento-osseous dysplasia of mandible.

Fibro-osseous lesions are disturbances in bone metabolism in which normal bone is replaced by a connective tissue matrix that then gradually develops into cemento-osseous tissue. Typically, the lesion is asymptomatic and is detected on routine radiographic examination. Radiologically, this lesion has three stages of maturation: pure radiolucent, radiopaque/mixed radiolucent, and radiopaque appearance.

A new method to estimate dental age.

Objective: The aim of this study was to evaluate the accuracy of Demirjian's method in estimating the dental age in Turkish children and to estimate the validity of Demirjian's standards for the studied population.

Materials And Methods: Panoramic radiographs of 756 northwestern Turkish children aged 5-13 years were examined. The new method for dental age estimation for both genders was studied to determine the relationship between dental age, chronological age and Demirjian's scores.

Oral and maxillofacial considerations in Gardner's Syndrome.

Gardner's Syndrome is a variant of familial adenomatosis polyposis (FAP) with a triad consisting of polyps of the colon, multiple osteomas and surface tumors of soft and hard tissue. The intestinal polyps have a %100 risk of undergoing malignant transformation, therefore early identification of this disease is very important. There are several symptoms of Gardner's syndrome in the oral and maxillofacial surgery, which can be discovered during routine dental examination.

Use of cone-beam computerized tomography for evaluation of bisphosphonate-associated osteonecrosis of the jaws in an experimental rat model.

Background: Bisphosphonate-induced osteonecrosis of the jaw (BONJ) is a frequently reported complication. The aim of this study was to investigate the clinical and histopathological presentation of BONJ with the Hounsfield score and to evaluate the reliability of the score for determining necrosis in an animal model.

Material/methods: Eighty rats were prospectively and randomly divided into two groups of 40 each: a control group and an experimental group.

Evaluation of light-emitting diode (LED-660 nm) application over primary osteoblast-like cells on titanium surfaces: an in vitro study.

Background: The goal of this study was to evaluate the behavior of neonatal rat calvarial osteoblast-like cells cultured on different implant surfaces and exposed once or three times to a 660-nm light-emitting diode (LED).

Methods: An LED with a 660-nm wavelength was applied once or three times to cultured cells on standard and modified sandblasted acid-etched surfaces (SLA and SLActive; Straumann, Basel, Switzerland). To analyze the effect of the LED on cell proliferation, numbers, and viability, cells were cultured on titanium discs, and measurements were taken after 72 h.

Iatrogenic mandibular fracture associated with third molar removal.

Third molar extraction is one of the most common procedures performed in oral and maxillofacial surgery units. It is sometimes accompanied by complications such as alveolar osteitis, secondary infection, hemorrhage, dysesthesia and, most severely, iatrogenic fracture. This article describes two mandibular angle fractures that occurred in two patients during the surgical extraction of one erupted and one unerupted third molar, including a brief review of the literature.

Extraction socket healing in rats treated with bisphosphonate: animal model for bisphosphonate related osteonecrosis of jaws in multiple myeloma patients.

Aim: The aim of this study is to replicate both clinical and histological presentation of bisphosphonate induced osteonecrosis of the jaws (BONJ) in an animal model of the disease state. Successful recapitulation of a BONJ-like indication in an animal model will be useful for studying pathogenesis, as well as prevention and treatment strategies for BONJ.

Materials And Methods: Eighty (80) rats were prospectively and randomly divided into two groups; control group(40) and study group(40).

In Vitro Antifungal Activity of Ankaferd Blood Stopper Against Candida albicans.

Background: Candida albicans is a memeber of the oral flora that can lead to various complications in immunosupresive patients after oral surgery processes. Ankaferd Blood Stopper® (ABS) is a medical plant extract that is safe to use in patients with dental surgery bleedings in Turkey.

Objective: The study evaluated the antifungal activity of ABS medicinal plant extract against C albicans using the agar diffusion and broth microdilution methods.

Pleomorphic adenoma of the palate.

Pleomorphic adenoma is the most common mixed benign tumor of major salivary glands. Approximately 80% of these tumors arise in the parotid gland, whereas 7% arise in the minor salivary glands. The most common sites for minor salivary gland where pleomorphic adenoma arises are the palates followed by lips and cheek.

Peripheral facial nerve paralysis after upper third molar extraction.

Peripheral facial nerve paralysis (PFNP) after mandibular interventions has been reported in the literature. In most cases, paralysis begins immediately after the injection of the mandibular anesthesia, and duration of facial weakness is less than 12 hours. However, there are few documented cases of PFNP after maxillary dental or surgical procedures.

Odontogenic cysts: a clinical study of 90 cases.

The maxillofacial region is affected by a greater number of cysts than any other part of the body. In this study, 90 odontogenic cysts were collected from 90 patients over a five-year period. Patients with radicular cysts, dentigerous cysts and odontogenic keratocysts were further analyzed with regard to age, sex and anatomical distribution.