Comparative Study of Algipore and Decalcified Freeze-dried Bone Allograft in Open Maxillary Sinus Augmentation

Mashhad University of Medical Sciences10 enrolled

Overview

The aim of this study was the radiographic and clinical comparison of Algipore with decalcified freeze-dried bone allograft (DFDBA) in the open maxillary sinus lift technique using piezoelectric instruments.

Vertical and horizontal bone resorption of the alveolar ridge are common in edentulous jaws. In the distal area of the maxilla, an adequate bone volume is often lacking because of the proximity of the sinus cavities to crestal bone. Sinus floor augmentation is an established way of increasing the height and volume of bone in the posterior region of the maxilla, which increase the stability of dental implants. For this purpose various materials, including auto grafts, allografts, alloplasts, and xenografts have been used.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Enrollment

Conditions

Disorder of Maxillary Sinus Maxillary Sinus Floor Augmentation

Interventions

Open Sinus LiftPROCEDURE

A crestal incision was made on the mucosa of the edentulous ridge. The flap was elevated carefully and extended labially to expose the bone. A vertical releasing incision was made in the mesial end of the flap as needed. The mucoperiosteal flap was extended to expose the alveolar ridge and the lateral wall of the maxillary sinus. Then, a window was prepared using the piezoelectric device (Mectron, Italy); the Schneiderian membrane was then elevated conservatively according to the technique described by Vercellotti (2001). The sinus membrane was meticulously detached and pushed superiorly to allow for the placement of bone graft material.

Eligibility

Sex: ALLHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * physically healthy patients * ridge bone height of less than 5 mm Exclusion Criteria: * any past medical history of systemic or localized diseases that were contraindications for sinus or implant surgery

Locations (1)

Amir Moeintaghavi

Mashhad, Khorasan Razavi, Iran

Outcomes

Primary Outcomes

increase in bone height

Baseline and 9 months radiographs were scanned with an Agfa scanner at 1200 dpi with a 12-bit grayscale and stored in JPEG format. Changes in bone height were calculated in each case. Two reference points, one at the lowest part of the ridge crest and the other at the highest part of sinus floor, were selected in two radiographs (baseline and after 9 months) and their distance was calculated in 0.1mm scale using computer.

Time frame: 9 months

Secondary Outcomes

Bone Density

Changes in radiographic density after sinus grafting were evaluated using densitometry.

Time frame: 9 months

Data from ClinicalTrials.gov

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