Temperature variation on root surface with three root-end cavity preparation techniques.

Introduction: Thermal changes can occur on the external root surface when root-end cavity preparation is performed, which may damage periodontal ligament cells and alveolar bone.

Objective: The purpose of this study was to evaluate the temperature changes during preparation of the root-end cavities at 1 and 3 mm to the sectioned apical root surfaces when either tungsten carbide round bur, diamond round bur or ultrasonic diamond tip was used.

Methods: Root-end resection was performed at 90 degrees to the long axis of the root, 3 mm from the apex.

Ultrasonography in the evaluation of midpalatal suture in surgically assisted rapid maxillary expansion.

Surgically assisted rapid maxillary expansion (SARME), which combines orthodontics and surgery, is a well-established therapy for transverse maxillary hypoplasia in adults after sutural closure or completion of skeletal maturation. X-rays are usually the preferred monitoring technique for this treatment. Recently, ultrasound scanning has been used successfully in the follow-up of patients undergoing distraction osteogenesis.

Temperature variation during apicectomy with Er:YAG laser.

Objective: The purpose of this in vitro study was to evaluate the generated temperature of the Er:YAG laser, with three different pulse durations for apicectomy, compared with tungsten bur and surgical saw.

Background Data: Apicectomy is an endodontic surgery performed to remove the root apex and curette adjacent periapical tissue because of lesions of the apical area that are not healing properly.

Methods: Sixty single-rooted extracted human teeth were resected by three cutting methods: tungsten bur, surgical saw, and Er:YAG laser irradiation with three different pulse durations; pulse duration 50 μs, pulse duration 100 μs, and pulse duration 300 μs.

Recurrent glandular odontogenic cyst treatment.

The glandular odontogenic cyst (GOC) is a rare odontogenic cyst. Although none of the clinical or radiographic features of GOC are unique or pathognomonic, the lesion has a potentially aggressive behavior. Treatment of GOC includes curettage and enucleation or excision and cryotherapy; however marginal resection is usually considered a more reliable approach due to the low incidence of recurrence.

Resonance frequency analysis of 208 Straumann dental implants during the healing period.

The most important prerequisite for the success of an osseointegrated dental implant is achievement and maintenance of implant stability. The aim of the study was to measure the 208 Straumann dental implant stability quotient (ISQ) values during the osseointegration period and determine the factors that affect implant stability. A total of 164 of the implants inserted were standard surface, and 44 of them were SLActive surface.