Effect of different low-level intensity laser therapy (LLLT) irradiation protocols on the osseointegration of implants placed in grafted areas
J. appl. oral sci
;
29: e20200647, 2021. graf
Article
in English
| LILACS
| ID: biblio-1286912
ABSTRACT
Abstract Objective To evaluate the effect of different protocols of low-level intensity laser therapy (LLLT) irradiation on the osseointegration of implants placed in grafted areas. Methodology 84 rats were randomly allocated into six groups DBB defect filled with deproteinized bovine bone; HA/TCP defect filled with biphasic ceramic of hydroxyapatite/β-tricalcium phosphate ; DBB-LI defect filled with DBB and treated with LLLT after implant placement; HA/TCP-LI defect filled with HA/TCP and treated with LLLT after implant placement; DBB-LIB defect filled with DBB and treated with LLLT after graft procedure and implant placement; and HA/TCP-LIB defect filled HA/TCP and treated with LLLT after graft procedure and implant placement. The bone defects were made in the tibia and they were grafted. After 60 days, the implants were placed. The rats were subsequently subjected to euthanasia 15 and 45 days after implant placement. The pattern of osseointegration and bone repair in the grafted area was evaluated by biomechanical, microtomographic, and histometric analyses. Furthermore, the expression of bone biomarker proteins was assessed. Results The LLLT groups presented higher removal torque, mineralized tissue volume, and a greater degree of osseointegration, especially when LLLT was performed only after implant placement, and these findings were associated with higher expression of BMP2 and alkaline phosphatase. Conclusion LLLT performed on implants placed in grafted areas enhances the osseointegration process.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Dental Implants
/
Osseointegration
/
Low-Level Light Therapy
Type of study:
Practice guideline
Limits:
Animals
Language:
English
Journal:
J. appl. oral sci
Journal subject:
Dentistry
Year:
2021
Type:
Article
Affiliation country:
Brazil
/
Ecuador
Institution/Affiliation country:
Universidad San Francisco de Quito/EC
/
Universidade Estadual Paulista/BR
/
Universidade Federal de Uberlândia/BR
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