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.

An anatomical study of vascularized iliac bone grafts for dental implantation.

Purpose: The purpose of this study was to clarify the anatomical features of vascularized iliac bone grafts used for mandibular reconstruction and dental implantation.

Material And Method: Twenty-six cadavers were dissected to examine vessels and areas of iliac bone that could be used as pedicles and grafts. The length and diameter of vessels of the vascular pedicle were determined, and the length and depths of the iliac bone were measured with respect to points determined by the relative dimensions of the bone.

Clinicoanatomic study on the craniofacial bones used for cranio- and maxillofacial implants.

Purpose: To clarify basic clinico-anatomic factors associated with cranio-maxillofacial rehabilitation using implants.

Materials And Methods: Morphometrically evaluated were items such as the length and width of bone and the thickness of cortical bone at important sites for implant placement into cranial and maxillofacial bones in 30 cadavers at autopsy.

Results: At sites corresponding to potential placement sites for implants as the fixation source for ocular epitheses, the mean length of bone was 7.