A rat model of gingivoperiosteoplasty.
The ability to avoid a subsequent bone graft makes the use of gingivoperiosteoplasty (GPP) at the time of cleft lip repair an attractive technique. The use of GPP, in combination with presurgical orthodontics, has been shown to result in successful bony union in the majority of patients. However, secondary bone grafting is still necessary in 30% to 40% of patients due to persistent alveolar bony defects. The elucidation of methods to improve the success rates of these procedures has been hampered by the lack of reproducible animal models. The purpose of this study was, therefore, to develop a rodent model of GPP that would facilitate the investigation of methods to improve osteogenesis in alveolar defects. We report a surgically produced rat model (9 x 5 x 3-mm alveolar defect) that is reproducible, inexpensive (relative to large-animal models), and simple technically. In addition, healing in this model occurs in a predictable manner during a 12-week period, thus enabling analysis of methods designed to accelerate or facilitate osseous regeneration.
Mehrara
B J
BJ
Laboratory of Developmental Biology and Repair, The Institute of Reconstructive Plastic Surgery, and the Department of Surgery, New York University Medical Center, New York, NY 10016, USA.
Saadeh
P B
PB
Steinbrech
D S
DS
Dudziak
M
M
Grayson
B H
BH
Cutting
C B
CB
McCarthy
J G
JG
Gittes
G K
GK
Longaker
M T
MT
D000539:Alveolar Process / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000473:pathology; D000543:Alveoloplasty / Q000379:methods*; D000818:Animals; D001861:Bone Regeneration / Q000502:physiology; D016723:Bone Remodeling / Q000502:physiology; D004396:Coloring Agents; D004195:Disease Models, Animal; D005456:Fluorescent Dyes; D005500:Follow-Up Studies; D005893:Gingivoplasty / Q000379:methods*; D008297:Male; D008437:Maxilla / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D015588:Observer Variation; D010012:Osteogenesis / Q000502:physiology; D010521:Periosteum / Q000601:surgery*; D011859:Radiography; D051381:Rats; D015203:Reproducibility of Results; D016037:Single-Blind Method; D016896:Treatment Outcome; D014945:Wound Healing / Q000502:physiology
D004396:Coloring Agents; D005456:Fluorescent Dyes