Format

Send to

Choose Destination
Photomed Laser Surg. 2010 Jun;28(3):365-9. doi: 10.1089/pho.2008.2429.

Low-level laser therapy for implants without initial stability.

Author information

1
School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.

Abstract

OBJECTIVE:

This study evaluated the effect of low-level infrared laser on removal torque values of implants with poor initial stability inserted in rabbit tibias.

BACKGROUND DATA:

It is important to analyze the effects of laser radiation on bone repair when low-quality bone and implants with poor initial stability are used.

MATERIALS AND METHODS:

Thirty male white New Zealand rabbits (Oryctolagus Cuniculus) about 2 mo old and weighing 1.5-2.0 kg were used. Machined implants with poor initial stability were inserted in the tibia of each animal. Animals were randomly divided into two groups: laser irradiated and laser nonirradiated. Each group was further divided into three subgroups, according to the day the animals were killed: 15, 30, or 45 d. Torque values were measured with an axial digital torquemeter that applied counter-torque. The Student's t-test was used to calculate means and standard deviations for the comparisons between laser and control groups.

RESULTS:

A significant increase (p = 0.050) in removal torque values was found in the group of laser-irradiated implants at 15 and 30 d when compared with the control groups. At 45 d, no significant differences were found.

CONCLUSION:

In this study, low-level laser therapy promoted the osseointegration of implants with poor initial stability, particularly in the initial stages of bone healing.

PMID:
19860572
DOI:
10.1089/pho.2008.2429
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Atypon
Loading ...
Support Center