Gradual and safe technique for sinus floor elevation using trephines and osteotomes with stops: a cadaveric anatomic study.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod
; 106(2): 210-6, 2008 Aug.
Article
en En
| MEDLINE
| ID: mdl-18547840
ABSTRACT
OBJECTIVE:
The aim of this study was to develop a new technique for maxillary sinus floor elevation through the crestal approach, using trephines and osteotomes with stops, and to assess the risk of sinus membrane lesion. STUDYDESIGN:
The study was performed on 30 heads removed from fresh nonpreserved cadavers with subsinus bone height >or=5 mm. The anatomic specimens were sectioned axially on a plane passing 1 cm below the infraorbital foramen, to be able to see and film the sinus floor covered by the membrane. A total of 112 implants were placed using this technique (48 without grafting material and 64 with grafting material).RESULTS:
Using this technique, we obtained a 4-6 mm elevation of the sinus membrane without impairing the mucosa. In the 13 cases where membrane lesions were observed, 9 had been performed without grafting material. The greater the initial subsinus bone height, the higher the elevation observed.CONCLUSIONS:
The success of this technique was due to stops on the trephines and osteotomes, which reduced the risk of invading the sinus cavity and made it possible to lift the membrane gently, fully controlling movements. This technique is indicated for large crests of type III or IV bone and with a minimal bone height of 5 mm.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Osteotomía
/
Aumento de la Cresta Alveolar
/
Maxilar
/
Seno Maxilar
Tipo de estudio:
Etiology_studies
/
Risk_factors_studies
Límite:
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Oral Surg Oral Med Oral Pathol Oral Radiol Endod
Asunto de la revista:
ODONTOLOGIA
Año:
2008
Tipo del documento:
Article
País de afiliación:
Francia