Egészségbiztonság Nemzeti Laboratórium(RRF-2.3.1-21-2022-00006) Támogató: NKFIH
(K128780) Támogató: Nemzeti Kutatás, Fejlesztés és Innovációs Iroda
(VEKOP-2.3.3-15-2016-00006)
Szakterületek:
Fogászat
Radiológia, sugárgyógyászat és orvosi képalkotás
Objectives: The aim of this matched prospective cohort study was to examine the microarchitecture
of the augmented bone following a modified alveolar ridge splitting procedure and
compare it to that of native bone. Methods: In the test group, patients underwent
a modified ridge split osteotomy procedure to restore the width of the posterior segment
of the mandible. Patients with sufficient bone width for dental implant placement
in the posterior region of the mandible following 3-month-long spontaneous healing
after tooth removal were included in the control group. In both study groups, bone
biopsy samples were harvested and dental implants were placed. Histomorphometry and
micro-CT analysis were performed. Results: Altogether, 15 patients were included in
this study (7 patients in the test group, with 14 bone core biopsies harvested, and
8 patients in the control group, with 13 bone core biopsies harvested). Percentage
bone volume (BV/TV) in the micro-CT analysis (22.088 ± 8.094% and 12.075 ± 4.009%
for the test and control group, respectively) showed statistically significant differences
between study groups. Conclusions: Based on histological and micro-CT analyses, the
modified ridge splitting procedure with autologous bone block harvested from the retromolar
area results in a dental implant recipient bone microarchitecture superior to that
of the extraction sockets left to heal undisturbed for a 3-month-long healing period.