Using the Roots of a Non Restorable Wisdom Tooth as a Block for Augmentation of Localized Defects

The Effect of Autogenous Tooth Roots for Lateral Alveolar Ridge Augmentation and Staged Implant Placement (A Controlled Clinical Study With Histological Assessment)

Status

UNKNOWN

Phases

Phase 4

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04266652

Acronym

Clinical

Enrollment

Registered

2020-02-12

Start date

2018-01-06

Completion date

2020-09-30

Last updated

2020-07-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Augmentation

Keywords

tooth block, Dental implants

Brief summary

assess and compare the efficacy and safety of autogenous tooth roots for lateral alveolar ridge augmentation with staged implant placement in comparison to autogenous bone block.

Detailed description

A total of 14 patients in need of implant therapy and lateral ridge augmentation were allocated to parallel groups receiving either 1) healthy autogenous tooth roots (e.g. retained wisdom or impacted teeth or 2) cortical autogenous bone blocks harvested from the retromolar area. After 26 weeks of submerged healing the horizontal bone gain were assessed both clinically and radiographically. A core biopsy was taken during the implant placement to assess the histology of the newly formed bone.

Interventions

PROCEDUREtooth block

tooth root blocks were used to increase the bone width

PROCEDUREautogenous bone block

autogenous bone block were used to increase the bone width

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Healthy volunteers

Inclusion criteria

1. Candidate for lateral ridge augmentation 2. Insufficient bone ridge width at the recipient site for implant placement 3. Sufficient bone height at the recipient site for implant placement 4. Healthy oral mucosa, at least 3 mm keratinized tissue. 5. Presence of wisdom teeth free from periapical infection. 6. Missing maxillary or mandibular tooth with moderate horizontal defect (4-8) according to cologne classification

Exclusion criteria

* 1\) Patients are systemically free according to Modified Cornell Medical Index 2) smokers patients. 3) Pregnant or lactating women.

Design outcomes

Primary

Measure	Time frame
Clinical and radiographic assessment of alveolar bone width following autogenous tooth roots augmentation.	6 months postoperatively

Secondary

Measure	Time frame
Histological analysis of remodeled autogenous bone roots 4 months following horizontal ridge augmentation. Histological analysis of remodeled autogenous bone roots 4 months following horizontal ridge augmentation.	6 months postoperatively

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026