Primary treatment for cleft lip and/or cleft palate in children in Japan.

Objective: To investigate current trends in primary treatment for children with cleft lip and/or cleft palate in Japan.

Design: Nationwide, retrospective study under the direction of the Academic Survey Committee of the Japanese Cleft Palate Association based on analysis of data obtained via a booklet-style questionnaire completed by institutions providing primary treatment for cleft lip and/or palate patients. PARTICIPANTS, PATIENTS: Patients were 4349 children undergoing primary repair for cleft lip and/or palate at 107 participating institutions between 1996 and 2000.

[Effect of implantation and implant connection on craniofacial bone growth in Beagle dogs].

Purpose: To study the effects of implantation and implant connection on Beagle craniofacial bone growth.

Methods: Eight Beagle dogs were randomly divided into two groups: unconnection group (4 dogs) and connection group (4 dogs). Two implant were implanted respectively in the lateral maxilla and zygomatic bone in each dog, the contra lateral side was used as normal control.

[Effect of implant junction on bone growth by X-ray analysis].

Objective: To explore the effects of mandibular implant junction on the growth of immature bone.

Methods: Eight Beagle dogs were randomly divided into three groups: control, unjunction and junction. Twelve implants were produced on the mandible of unjunction experimental group and junction experimental group.

Mineralized bone loss in partially edentulous trabeculae of ovariectomized rabbit mandibles.

Objective: The purpose of this study was to evaluate trabeculae changes in partially edentulous bone in ovariectomized rabbits.

Background: Numerous clinical studies have suggested that the greater risk for oral bone loss in females may be correlated with osteoporosis after menopause. Knowledge of trabecular changes in partially edentulous bone in animals with loss of ovarian function may be beneficial in the diagnosis and treatment of partially edentulous patients of postmenopausal women.