abstract   background: different methods of surgical treatment for acromioclavicular(ac) joint injury were considered in the literature. the purpose of the study was to compare intra- articular ac repair technique with the extra-articular coracoclavicular repair technique for the patients with rockwood type iii and vac joint injury when indicated.   methods: nineteen consecutive patients with r...

OBJECTIVES The purpose of this study was to describe the relationship between neo-aortic root size, neo-aortic insufficiency (AI), and reintervention at mid-term follow-up. BACKGROUND Data on neo-aortic valve function and growth after the Ross procedure in children are limited. METHODS A total of 74 of 119 Ross patients from January 1995 to December 2003 had > or =2 follow-up echocardiogram...

OBJECTIVE Evaluate the results of various surgical procedures used for aortic root replacement in children with aortic root aneurysm. METHODS Between 1986 and 2007, 23 children (less than 16 years of age, mean age: 8.1+/-5.1 years) underwent elective aortic root replacement for aortic root aneurysm (with associated aortic insufficiency in 10 patients). All had connective tissue defect syndrom...

The objective of this study was to evaluate periapical and apical repair using calcium hydroxide root canal dressings for different lengths of times in teeth with induced chronic periapical lesions. A total of 61 root canals of maxillary and mandibular premolars from 4 dogs were used. After mechanical preparation of the root canals using the crown-down technique, and 5.25% NaOCl as irrigating s...

Root fractures are defined as fractures involving dentine, cementum, and pulpal and supportive tissues. They comprise about 0.5–7% of all dental injuries. Horizontal root fractures are commonly observed in the maxillary anterior region and 75% of these fractures occur in the maxillary central incisors. Case report: This case report is about a 26-year-old male referred to the endodontic departme...

Common complications of dento-alveolar trauma are pulp necrosis, pulp canal obliteration, periapical pathosis and root resorption. Different types of root resorption have been identified with traumatic injuries. Repair-related (surface), infection-related (inflammatory), ankylosis-related (osseous replacement) or extraradicular invasive cervical resorption are among the most common. Recent deve...

Grasses such as bamboos can produce upright stems more than 30 m tall, yet the processes that constrain plant height in this important group have never been investigated. Air embolisms form commonly in the water transport system of grasses and we hypothesised that root pressure-dependent refilling these embolisms should limit the maximum height of grass species to the magnitude of their root pr...

The aim of this study was to evaluate periapical repair after root canal filling with different endodontic sealers. Sixty-four root canals from dog s teeth were filled, divided into 4 groups (n=16). Root canals were instrumented with K-type files and irrigated with 1% sodium hypochlorite solution. Root canals were filled in the same session by active lateral condensation of the cones and sealer...