Evaluation of Bone Healing After Osteotomies Prepared With Er:YAG Laser in Contact and Noncontact Modes and Piezosurgery--An Animal Study.
J Oral Maxillofac Surg
; 74(1): 18-28, 2016 Jan.
Article
en En
| MEDLINE
| ID: mdl-26428612
ABSTRACT
PURPOSE:
To analyze the healing of bone tissue treated with ErYAG laser contact and noncontact modes of and piezosurgery in a rat model using triangular laser profilometry. MATERIALS ANDMETHODS:
Twenty-four 10-week-old adult male Wistar rats were used in the study. Three osteotomies on the medial part of tibia were performed in each animal, 1 in the right tibia and 2 in the left tibia. The osteotomies were performed with a piezoelectric device set at maximal power and the ErYAG laser in contact mode (power, 7.5 W; pulse energy, 375 mJ; repetition rate, 20 Hz; MSP mode) and noncontact mode (power, 7.5 W; pulse energy, 750 mJ; repetition rate, 10 Hz; QSP mode) with a novel type of circular, digitally controlled handpiece (x-Runner). After surgery, 6 animals were immediately euthanized (group 1), and the others were euthanized after 1 week (group 2, n = 6), 2 weeks (group 3, n = 6), and 3 weeks (group 4, n = 6). Bone healing after osteotomy was analyzed using a 3-dimensional laser scanning technique (ie, laser triangulation profilometry).RESULTS:
The volume reduction rates are similar for all 3 techniques (0.2 to 0.25 mm(3) per week). Greater volume reduction of 0.25 mm3 per week was observed for the ErYAG laser in noncontact mode (x-Runner). After 3 weeks, almost complete healing of the prepared osteotomy was observed.CONCLUSION:
Within the limitations of this study, the osteotomies performed by the ErYAG laser in digitally controlled noncontact mode healed the fastest.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Osteotomía
/
Tibia
/
Terapia por Láser
/
Láseres de Estado Sólido
/
Piezocirugía
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
J Oral Maxillofac Surg
Año:
2016
Tipo del documento:
Article
País de afiliación:
Croacia