Dental Implantation, Partially Edentulous Mandible
Conditions
Brief summary
This is a randomized controlled study that aims to compare the accuracy between full-guided with guide-pin-assisted free-hand dental implant surgeries. The basis of evaluation in each case is the comparison of the preoperative digital plan with the actual postoperative status.
Detailed description
Dental implant surgery is a treatment that replaces damaged or missing teeth with artificial teeth that are aesthetically and functionally similar to natural teeth. For a successful implant surgery, it is necessary to use digital planning software in conjunction with a cone-beam CT scan and a custom-made 3D-printed surgical guide. In developing countries like Bangladesh, surgical guide-assisted dental implant surgery is absent. Doctors attend implant surgeries relying on their visual assessment from x-ray images or CBCT data. They need to cut the outer soft tissue, expose the bone, and use a guide pin to confirm the direction and location. Then they perform implant surgery following the hole created by the guide pin, similar to free-hand surgery. But the overall procedure is still highly invasive and has low accuracy. Free-hand implant surgeries are still in practice everywhere. The application of a guide pin has been observed in some places to enhance the situation. A guide pin helps an operator recognize the position and angle of an alveolar bone when forming an implantation hole in the alveolar bone to insert an implant into the alveolar bone. Doctors insert a guide pin to the implant site with minimal incision and then confirm the desired direction and location with a radiographic image. However, we need a proper clinical evaluation to compare fully-guided surgeries to guide-pin-assisted surgeries to understand the accuracy of both processes. The accuracy of the pre-planned 3D-printed surgical guide is well established. Introducing dental software and guided surgery has already achieved higher acceptance in implant surgery. Several patients from several privileged parts of the world benefit from surgical guides. But the usual design convention includes intraoral scanner data with CBCT. However, intraoral scanners are still unavailable in many dental hospitals. The study is designed to address the precision of dental implant surgeries worldwide, especially where the intraoral scanner is not present. In our research, we will focus on partially edentulous patients. And our design procedure will not be dependent on intra-oral scanner data. As partially edentulous patients are higher in number and CBCT machines readily available in hospitals, this study can open up a way to address the scarcity of intra-oral scanner data to avail a large number of implant patients with an effective guide. The success rate of this study will encourage us not only to prioritize guided surgeries over free-hand practices or guide-pin-assisted surgeries but also to significantly impact the execution of implant surgeries in developing countries.
Interventions
DEVICESurgical Guide
For this case, after the patient is given anesthesia, the guide will be placed on the teeth. All the drillings will be performed through the guided path. There will be no need for raising flap according to flapless surgery. At the end of the operation, the operation site will be checked and hemostasis will be provided. The operator will record the operation in the source documentation. 2 ± 1 days later, a postoperative CT scan will be taken. A follow-up visit will be due 14 ± 2 weeks later, after the osseointegration period.
PROCEDUREGuide-pin-assisted Freehand surgery
The regular protocol of the implant surgery will be followed. Before the surgery begins, the patient will be given anesthesia to ensure they are comfortable and pain-free during the procedure. Doctors will go through the digital planning to understand the desired angulation. Then the bony bed will be prepared raising flap from targeted area. Then a guide-pin will be inserted by drilling and through radiographic image the direction will be confirmed. Following the hole of the guide-pin, the implant will be inserted. At the end of the operation, the raised flap will be sewn and hemostasis will be provided. The operator records the operation in the source documentation. 2 ± 1 days later, a postoperative CT scan will be taken. A follow-up visit will be due 14 ± 2 weeks later, after the osseointegration period.
Sponsors
Bangladesh University of Engineering and Technology
Dhaka Dental College and Hospital
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Intervention model description
Parallel Assignment
Eligibility
Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
Yes
Inclusion criteria
* Patients of age between 18 to 75 and of any gender * Patient fit for implantation (satisfactory soft and hard tissue conditions and occlusion) * Partially edentulous patient
Exclusion criteria
* Patient with pregnancy * Patient with uncontrolled diabetes mellitus. * Patient who needed dentoalveolar or associated soft tissue reconstruction procedure * Patient taking bisphosphonate or have any history of systemic or local bone disease * Recent extracted sites * Patients with a history of smoking, alcoholism * Patient with a history of head-neck radiation * Patient with associated periapical pathology or history of parafunctional habit * Patient needs bone grafting. * Known HIV, Hepatitis B, or Hepatitis C infection. * Limited mouth opening, which, in the examiner's opinion, would risk the success of the intervention * Local infection * Known allergy to any component of the implant or the implant guide
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Angular deviation | 3 months | The angle formed by the primary axis of the proposed digital implant and the actual implant as put, stated in degrees. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Coronal deviation | 3 months | The deviation of the implant's coronal point from the anticipated coronal position in three dimensions, measured in millimeters. |
| Apical deviation | 3 months | The deviation of the implant's apical point from the anticipated apical position in three dimensions, measured in millimeters. |
Countries
Bangladesh
Contacts
Primary ContactDr. Md Al-Amin Sarkar, BDS, FCPS (Prosthodontics)
Backup ContactDr. Muhammad Tarik Arafat, B.Sc., Ph.D.
Outcome results
None listed