Mineralized and Partial Demineralized Dentin Graft Compared to FDBA

NCT ID: NCT05311735

Last Updated: 2024-07-10

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 45 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2021-10-29
• Study Completion Date: 2024-06-19

Brief Summary

The bone grafting materials currently used in dentistry are autografts, allografts, xenografts, and alloplastic grafts. Among these different types of bone graft materials, autografts are considered to have the most predictable results due to its properties of osteogenesis, osteoinduction and osteoconduction. However, bone autografts are rarely used due to the high morbidity associated with harvesting the bone graft from the patient with a second surgical site. Because of the increased risk to the patient with autogenous bone grafts, the current standard of care is an allograft, which is a bone graft harvested from cadaver sources such as Freeze-Dried Bone Allograft (FDBA). While allografts can only possess the qualities of osteoinduction and osteoconduction, they also have dramatically less morbidity due to the lack of a second surgical site.

Studies have shown that autogenous dentin grafts promote all three ideal mechanisms for bone regeneration. There are two methods to generate autogenous dentin grafts. One is to collect the extracted tooth and to send it to a tooth bank for the preparation process. The second is to process the extracted tooth in a clinical setting chairside, for a graft. A dentin graft can undergo different treatments such as demineralization, mineralization, and partial-demineralization. Although the autogenous dentin graft has shown positive results for bone regeneration, the comparison between partial-demineralized, mineralized autogenous dentin grafts, and freeze-dried bone grafts in the clinical setting for immediate grafting has not been studied in humans. Thus, there is a need to study the benefits of autogenous dentin partial-demineralized and mineralized grafts versus freeze-dried bone allografts regarding clinical, radiographically (bone volume and density), and efficacy results. This research addresses these areas of need.

Detailed Description

The bone grafting materials currently used in dentistry are autografts, allografts, xenografts, and alloplastic grafts. Among these different types of bone graft materials, autografts are considered to have the most predictable results due to its properties of osteogenesis, osteoinduction and osteoconduction. However, bone autografts are rarely used due to the high morbidity associated with harvesting the bone graft from the patient with a second surgical site. Because of the increased risk to the patient with autogenous bone grafts, the current standard of care is an allograft, which is a bone graft harvested from cadaver sources such as Freeze-Dried Bone Allograft (FDBA). While allografts can only possess the qualities of osteoinduction and osteoconduction, they also have dramatically less morbidity due to the lack of a second surgical site.

Studies have shown that autogenous dentin grafts promote all three ideal mechanisms for bone regeneration. There are two methods to generate autogenous dentin grafts. One is to collect the extracted tooth and to send it to a tooth bank for the preparation process. The second is to process the extracted tooth in a clinical setting chairside, for a graft. A dentin graft can undergo different treatments such as demineralization, mineralization, and partial-demineralization. Although the autogenous dentin graft has shown positive results for bone regeneration, the comparison between partial-demineralized, mineralized autogenous dentin grafts, and freeze-dried bone grafts in the clinical setting for immediate grafting has not been studied in humans. Thus, there is a need to study the benefits of autogenous dentin partial-demineralized and mineralized grafts versus freeze-dried bone allografts regarding clinical, radiographically (bone volume and density), and efficacy results. This research addresses these areas of need.

A. Specific Aims

Specific Aim 1:

Is there a clinical-radiographical difference in terms of bone volume and density between mineralized dentin grafts, partial demineralized tooth grafts, and FDBA?

Null Hypothesis (Ho): Experimental groups (Mineralized, and partial demineralized dentin grafts) do not have positive changes in terms of bone volume and density when compared to FDBA

Alternative Hypothesis (H1): Experimental groups (Mineralized, and partial demineralized dentin grafts) show better results in terms of bone volume and density when compared to FDBA.

Secondary Aim:

Evaluate if there is any difference in terms of efficacy among partial-demineralized dentin graft, mineralized dentin graft and FDBA.

Conditions

Alveolar Bone Loss

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Freeze-Dried Bone Allograft Control

-Control group (FDBA): extracted teeth will be discarded and sites will be grafted with FDBA.

Group Type: OTHER

Freeze-Dried Bone Allograft control

Intervention Type: PROCEDURE

Bone grafting to prevent alveolar ridge collapse after tooth removal

Mineralized Dentin Graft

-Test group I (mineralized tooth graft): extracted teeth will undergo the mineralization process according to the manufacture's guidelines. Procedure will be done in a specialized equipment for tooth graft preparation (Smart Dentin Grinder® (SDG) (KometaBio), and then sites will be grafted. Remaining graft will be stored appropriately for future grafting in the same patient (according to the guidelines)

Group Type: EXPERIMENTAL

Mineralized Dentin Graft

Intervention Type: PROCEDURE

Mineralized tooth graft used as a bone graft substitute to prevent alveolar ridge collapse after tooth removal

Partial-Demineralized Dentin Graft

-Test group II (partial-demineralized tooth graft): extracted teeth will be undergone to partial-demineralized process, according to the manufacture's guidelines. Procedures will be done in a specialized equipment for tooth graft preparation (Smart Dentin Grinder® (SDG) (KometaBio), and then sites will be grafted. Remaining graft will be stored appropriately for future grafting in the same patient (according to the guidelines).

Group Type: EXPERIMENTAL

Partial-Demineralized Dentin Graft

Intervention Type: PROCEDURE

Partially mineralized tooth graft used as a bone graft substitute to prevent alveolar ridge collapse after tooth removal

Interventions

Freeze-Dried Bone Allograft control

Bone grafting to prevent alveolar ridge collapse after tooth removal

Intervention Type: PROCEDURE

Mineralized Dentin Graft

Mineralized tooth graft used as a bone graft substitute to prevent alveolar ridge collapse after tooth removal

Intervention Type: PROCEDURE

Partial-Demineralized Dentin Graft

Partially mineralized tooth graft used as a bone graft substitute to prevent alveolar ridge collapse after tooth removal

Intervention Type: PROCEDURE

Eligibility Criteria

Inclusion Criteria

• Adult patients ≥18 years old
• Able to understand and sign a written informed consent form and willing to fulfil all study requirements.
• Alveolar sockets with intact four-wall architecture.
• Patients with at least a tooth that need to be extracted.

Exclusion Criteria

• Uncontrolled systemic disease
• Currently smoking >10 cigarettes per day
• History of head and/or neck radiotherapy in the past five years
• Bisphosphonates current use or history of IV bisphosphonate
• Pregnant, expecting to become pregnant, or lactating women.
• Presence of active periodontal disease.
• Teeth that underwent root canal fillings
• Teeth with acute infection at the site of extraction.
• Teeth with periapical infection

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Delta Dental Foundation

OTHER

Sponsor Role: collaborator

University of Oklahoma

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Robin Henderson, DMD MS

Role: PRINCIPAL_INVESTIGATOR

University of Oklahoma College of Dentistry

Locations

University of Oklahoma College of Dentistry Graduate Periodontics

Oklahoma City, Oklahoma, United States

Countries

United States

References

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Reference Type: BACKGROUND

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Other Identifiers

13712

Identifier Type: -

Identifier Source: org_study_id