Sinus Augmentation in the Posterior Maxillary Region: a Case Report of 0mm Bone Height.

Study Overview
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Brief Summary
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Sinus floor elevation (SFA) and GBR have been applied in the placement of dental implants in longstanding edentate posterior maxilla region. However, the number of study on the efficacy of these procedure on areas with 0mm bone height is limited. This case study aims to compare two cases of 0mm bone height in the posterior maxillae region with different handling procedure. In this article, two female patients in their 40s underwent maxillary sinus augmentation (sinus lifting) due to longstanding missing posterior maxillary molars with the bone of which area had resorbed entirely, leaving 0mm bone height. One patient went through conventional sinus augmentation while the other had a two-stage - sinus - lift procedure. Researchers compared the bone - volume induced between the two procedures.

Official Title
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Sinus Augmentation in the Posterior Maxillary Region: a Case Report of 0mm Bone

Conditions
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Bone Resorption

Intervention / Treatment
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* Procedure: Conventional sinus lift surgery
* Procedure: Two-stage-sinus-lift procedure


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: 0mm bone height at posterior maxillae region Exclusion Criteria: general contraindication to implant surgery subjected to irradiation in the head and neck area <1 one year before implantation uncontrolled diabetes pregnant or nursing substance abuse heavy smoker psychiatric therapy or unrealistic expectations immunosuppressed or immunocompromised treated or under treatment with oral or intravenous aminobisphosphonates untreated periodontitis poor oral hygiene and motivation

Ages Eligible for Study
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Minimum Age: 40 Years
Maximum Age: 45 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: Conventional sinus lift procedure<br>Participants assigned to conventional sinus augmentation | Procedure: Conventional sinus lift surgery<br>* After graft reflection, sinus membrane is separated from bone or oral mucosa and then bone graft is inserted in between the two structures.<br>|
| Other: Two-stage-sinus-lift procedure<br>Participants assigned to two-stage - sinus - lift procedure | Procedure: Two-stage-sinus-lift procedure<br>* Procedure is performed in two stages with the purpose of stage one to separate the oral mucosa from the sinus membrane using a small amount of bone graft and stage two as actual sinus augmentation, which is performed similar to that of conventional sinus lift procedure.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Bone formation recorded after two-step-sinus-augmentation. | 9,98mm bone height is recorded on CBCT. | 21 months |