Comparison of Two Pre-prosthetic Surgical Techniques for Augmentation of Mandibular Vertical Ridge Defects

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04376320

Enrollment

Registered

2020-05-06

Start date

2020-04-01

Completion date

2020-10-04

Last updated

2020-11-04

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

Conditions

Alveolar Ridge Enlargement

Brief summary

The aim of this study is to compare two pre-prosthetic surgical techniques for augmentation of vertical mandibular ridge defects in preparation for implant placement, the first using customized ceramic membranes and the second using tenting titanium screws in conjunction with particulate bone graft and collagen membrane (modified sausage technique).

Detailed description

Background: Expansion of the periosteum and soft tissue matrix by tenting has been described as a method of Guided Bone Regeneration (GBR) for reconstruction of atrophic alveolar ridges. Materials and Methods: The current study is a prospective controlled clinical trial, conducted on 14 patients, having about 7 mm of vertical bone height in the posterior mandible above the inferior alveolar canal. They are divided into 2 equal groups, each consisting of 7 patients. The first group receives customized ceramic membranes with a vertical height 5 mm above the crest of the ridge to tent out the soft tissue matrix, while in the second group, tenting of the soft tissue is done by fixation of two tenting screws, particulate bone graft is packed then covered by collagen membrane that is fixed by bone tacks (modified sausage technique).

Interventions

DEVICEcustomised ceramic sheets (Group 1)

guided bone regeneration

COMBINATION_PRODUCTmodified sausage technique (Group 2)

guided bone regeneration

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

40 Years to 60 Years

Healthy volunteers

Yes

Inclusion criteria

* patients of both genders * with age range from 40 to 60 years, * having about 7 mm of vertical bone height in the posterior mandible above the inferior alveolar canal and * requiring prosthetic rehabilitation with dental implants.

Exclusion criteria

* heavy smokers, * patients undergoing radiotherapy or chemotherapy, * those having infection or local lesions in the area of surgery, and * patients with bone diseases which may compromise the results

Design outcomes

Primary

Measure	Time frame	Description
mean percentage of change of alveolar bone height	6 months	change of alveolar bone height after surgery

Countries

Egypt

Outcome results

None listed

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