The purpose of this study was to compare the sealing ability of gray mineral trioxide aggregate (GMTA), white MTA (WMTA), and both white and gray Portland cement as furcation perforation repair materials. A total of 120 human mandibular first molars were used. After root canal obturation and preparation of furcal perforations the specimens were randomly divided into four groups of 25 teeth each...

Within the last few years numerous workers have added yery materially to the sum total of our knowledge of the detailed structure of a· number of furcocercous cercariae and we are now in a position to attempt a systematic grouping of the various species based on the c}ln.racteristics of their excretory systems. In 1922 I attempted a classification of the furcocercous cercariae and created a num...

INTRODUCTION This study aimed to compare the thickness of the mesiobuccal furcal canal walls of first and second maxillary molars. MATERIALS AND METHODS This study was performed on total of 30 first and second extracted molar teeth (15 each). The mesiobuccal roots of each tooth were separated at the cement-enamel junction (CEJ) level and embedded in acrylic resin. The embedded roots were cut ...

In this paper, the Palearctic genus Dimorphaphorura Bagnall, 1949 (Collembola: Onychiuridae), is revised. The diagnosis of the genus is defined within the tribe Oligaphorurini based on the development of the furcal area, shape of furcal rudiment, and furcal chaetotaxy. Six new species are described: D. olenae sp n. from Ukraine, D. inya sp n., D. pseudoinya sp n., D. sibirica sp n., D. caucasic...

Mineral Trioxide Aggregate is a material developed for endodontics that appears to be a significant improvement over other materials for procedures in bone. It is the first restorative material that allows for the overgrowth of cementum and the regeneration of periodontal ligament. The present case report illustrates the use of MTA in treating a case of perforation in the furcation area with lo...