الفهرس 
History of dental implantsOnly 14 pages are availabe for public view
 |  | from | 125 |  |  |
| | | from | 125 | | |
Abstract
The study was conducted to evaluate the efficacy of the
platelets rich fibrin vs anorganic bovine bone mineral as grafting
materials used in post extraction socket in the anterior maxillary
region and their effect on implant primary stability assessed by
means of insertion torque and resonance frequency analysis.
Forty two fresh extraction sockets in twenty seven patients
with average age of 41.5 years old were included. The subjects
were randomly allocated into three groups. The study group
consists of sockets where PRF was placed, the positive control
consists of sockets where Xenogeneic bone graft were placed along
with collagen plug and negative control consists sockets that are
left to heal without the use of any grafting materials.
Each group was further divided into two subgroups: implant
placement and assessment at three months and implant placement
and assessment at six months interval.
All subjects were assessed clinically at the time of implant
placement. Assessment was done using insertion torque wrench
and Resonance Frequency Analysis.
Results were tabulated and assessed using Student t test, One
Way ANOVA test and Pearson correlation test to assess effect of
time and socket augmentation material.This study -within its sample size limitations- showed that,
PRF as a socket grafting material has no additive effect on the
primary stability of implants placed in post extraction sockets.
Resonance frequency analysis and insertion torque
assessment results showed significant correlation in all groups of
the study except the study group at 3 months which means that
implant primary stability if properly achieved will positively affect
implant resistance to both rotational and lateral forces.