The effect of drilling speed on early bone healing to oral implants.
OBJECTIVE
This study evaluated the effect of drilling speed on early bone healing in dog tibiae.


METHODS
Thirty-six implants (4.0-mm diameter × 10-mm length) were placed in the proximal tibiae of 6 beagles with drilling speeds of 100, 500, and 1000 rpm, and insertion torque was recorded. Bone-to-implant contact (BIC) and bone area fraction occupancy (BAFO) were evaluated.


RESULTS
Significant increase from 1 to 3 weeks was observed for all groups for BIC, whereas no significant differences between 1 and 3 weeks were detected for the 100- and 500-rpm groups for BAFO (P > .34 and P > .46, respectively). A significant difference from 1 to 3 weeks was observed for the 1000-rpm group (P < .03). The 100- and 500-rpm groups presented significantly higher BAFO than the 1000-rpm group at 1 week (P = .002).


CONCLUSIONS
Drilling speed is one of the decisive factors for early osseointegration, and overall, drilling at 1000 rpm seemed to yield the strongest biologic responses.
Assistant Professor, Department of Oral Implantology, Istanbul University, Faculty of Dentistry, Istanbul, Turkey.
Sinem
S
Yeniyol
Ryo
R
Jimbo
Charles
C
Marin
Nick
N
Tovar
Malvin N
MN
Janal
Paulo G
PG
Coelho
D000818:Animals; D003758:Dental Implantation, Endosseous / Q000295:instrumentation*; D015921:Dental Implants; D003762:Dental Instruments; D017267:Dental Prosthesis Design; D004285:Dogs; D016348:Osseointegration; D010027:Osteotomy / Q000295:instrumentation*; D010784:Photomicrography; D013977:Tibia / Q000601:surgery; D014025:Titanium; D019415:Torque; D014945:Wound Healing
D015921:Dental Implants; D014025:Titanium