+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Intraoral widening and lengthening of the mandible in baboons by distraction osteogenesis



Intraoral widening and lengthening of the mandible in baboons by distraction osteogenesis



Journal of Oral and Maxillofacial Surgery 57(5): 548



The purpose of this study was to analyze the skeletal and dental positional changes and histomorphology of the distraction regenerates and mucogingival periosteal tissues that occurred after simultaneous widening and bilateral lengthening of the mandible in baboons by a miniaturized intraoral bone-borne distraction appliance. Distraction appliances were activated 5 days after vertical ramus and symphyseal osteotomies at a rate of 0.9 mm/d for 10 days. The appliances were then stabilized for 8 weeks, after which the animals were killed. The distraction gaps and gingival tissues were analyzed clinically, histologically, and by standardized radiographic studies. Positional changes of the canines and incisor apices were proportional to the skeletal movements. Tipping of both incisors toward the center of the distraction gap was observed. Proportionate movement of the superior and inferior portion of the distracted segments was noted. Newly formed longitudinal trabecular columns parallel to the vector of distraction originated from the intact margins of alveolar bone contiguous with the adjacent teeth. Active histogenesis occurred in the stretched mucogingival periosteal tissues located in the distraction gaps. The results of this investigation support the clinical use of the miniaturized intraoral bone-borne distraction appliance to selectively widen and lengthen the mandible. The orientation of the mandibular distractors must be parallel to the common vector of distraction, which should be parallel to the maxillary occlusal plane. The formation of a bone regenerate in the alveolar region depends on the presence of an adequate bone interface on either side of the distraction gap.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 046455374

Download citation: RISBibTeXText

PMID: 10319829

DOI: 10.1016/s0278-2391(99)90073-3


Related references

Mandibular widening by intraoral distraction osteogenesis. British Journal of Oral and Maxillofacial Surgery 35(6): 383-392, 1997

Mandibular widening by intraoral distraction osteogenesis. British Journal Of Oral and Maxillofacial Surgery. 35(6): 383-392,., 1997

Intraoral distraction osteogenesis: maxillary and mandibular lengthening. Atlas of the Oral and Maxillofacial Surgery Clinics of North America 7(1): 111-151, 1999

Lengthening of the Mandible by Distraction Osteogenesis. Journal of Craniofacial Surgery 5(5): 313-317, 1994

Intraoral distraction osteogenesis of the mandible in hemifacial microsomia. Journal of Oral and Maxillofacial Surgery 59(7): 728-733, 2001

Mandibular widening by intraoral distraction osteogenesis for severe telescopic bite correction: a report of 2 cases. World Journal of Orthodontics 8(3): 221-231, 2007

Does the sheep mandible relapse following lengthening by distraction osteogenesis?. Journal of Cranio-Maxillo-Facial Surgery 28(5): 251-257, 2000

Lengthening of the mandible by distraction osteogenesis: report of cases. Journal of Oral and Maxillofacial Surgery 53(7): 838-846, 1995

Mandibular widening by distraction osteogenesis in the treatment of a constricted mandible and telescopic bite. Cleft Palate-Craniofacial Journal 41(6): 664-673, 2004

Lengthening of the mandible by distraction osteogenesis: experimental work in rabbits. Journal of Craniofacial Surgery 5(5): 313-317, 1994

Mandibular lengthening by distraction osteogenesis using osseointegrated implants and an intraoral device: a preliminary report. Journal of Oral and Maxillofacial Surgery 54(5): 594-600, 1996

Distraction osteogenesis of the mandible using a submerged intraoral device: a report of three cases. Journal of Oral and Maxillofacial Surgery 57(2): 192-198, 1999

Intraoral distraction osteogenesis in the baboon mandible using a tooth and bone-anchored appliance. Journal of Oral and Maxillofacial Surgery 58(1): 49, 2000

Distraction osteogenesis of the mandible with a modified intraoral appliance: a pilot study in miniature pigs. International Journal of Adult Orthodontics and Orthognathic Surgery 13(3): 241-247, 1998

Histomorphometric evaluation of delayed changes in masseter muscle after lengthening the rabbit mandible by distraction osteogenesis. Oral Diseases 15(2): 142-147, 2009