Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT05311332 |
Other study ID # |
FUE.REC (23)\11-2021 |
Secondary ID |
|
Status |
Completed |
Phase |
N/A
|
First received |
|
Last updated |
|
Start date |
October 13, 2021 |
Est. completion date |
November 1, 2022 |
Study information
Verified date |
February 2023 |
Source |
Future University in Egypt |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Interventional
|
Clinical Trial Summary
this study aims to evaluate horizontal bone augmentation achieved at the anterior maxilla
using computer-guided cortical shell bone technique and accuracy of fixation of the bone
shell away from the atrophic ridge by a calculated distance which is always a challenging
step for inexperienced surgeons to fix a cortical shell at the ideal position in the
conventional protocol it was never guided to be precisely fixed at the proper position and
angulation the problem is if it fixed with insufficient distance with proposed volume loss
leads to totally insufficient volume gain for future implant placement also to evaluate the
efficacy of the CAD/CAM surgical guide during chin harvesting procedures in reducing the risk
of anatomical structure damage and patient morbidity with more accuracy compared with the
standard technique. this trial versus free hand conventional cortical shell bone technique
both harvested from symphysis area (chin).
Description:
Tooth extraction may be due to a variety of causes such as badly decayed, periodontal
disease, and trauma whatever the reason tooth loss is always followed by loss of masticatory
force and muscle stimulation to the alveolar bone so according to Wolff's Law (Wolff, 1892)
loss of mechanical stimulation is followed by the reduction of bone mass.
Several surgical protocols have been used to manage horizontal maxillary alveolar bone
atrophy such as bone splitting and bone spreading techniques with or without filling the
created space, onlay bone graft, guided bone regeneration using resorbable or non-resorbable
membrane, distraction osteogenesis, and shell bone block technique which use a thin cortical
bone shell to reshape the atrophied ridge and protect the particulate bone graft.
Despite the popularity of this technique, it usually requires high surgical skills, prolonged
intra-operative time, and unfortunately has some technical drawbacks. Such as lack of
anatomical guidance during bone harvesting which may lead to injury to the important vital
structure and lack of guidance during fixation may lead to improperly positioned, tilted, or
rotated shell or even leaving an undesired distance between the shell and deficient ridge
With the increasing use of cone-beam computed tomography (CBCT), intra and extra oral scanner
for patient data acquisition, and complete digital workflow in clinical practice and it is
rapidly becoming the standard of care in dentistry. Regarding bone augmentation as
preparation for future implant placement. computer-aided surgery has been an innovation that
enables clinicians to have firm and accurate treatment planning. Also, milling or 3D printing
methods allow variable techniques for the fabrication of surgical templates.
This study aims to fully digitalize such technique using patient-specific surgical guides to
allow for accurate graft harvesting and positioning and to minimize intraoperative time and
complications associated with this procedure