IS THE ALVEOLAR RIDGE SPLIT TECHNIQUE A SAFE PROCEDURE IN THE NARROW RIDGE OF THE MAXILLA FOR FULL-ARCH REHABILITATION: A RETROSPECTIVE STUDY
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 47
- 主要终点
- Implant Survival
研究概览
简要总结
This retrospective study evaluated the use of the alveolar ridge split (ARS) technique in patients with a completely edentulous upper jaw who received implant-supported fixed prostheses.
The ARS technique is used when the jawbone is too narrow to allow conventional implant placement. In this study, patients with insufficient maxillary ridge width underwent one-stage ARS with simultaneous implant placement, while patients with adequate ridge width received conventional implant placement without ridge splitting.
The study compared the two treatment approaches in terms of implant survival, marginal bone loss around the implants, and implant success, including biological and prosthetic complications.
A total of 47 patients with 332 dental implants were evaluated. The overall implant survival rate was 99.2%, and no significant difference was observed between the ARS and conventional implant groups. Marginal bone loss and implant success rates were also similar between the groups.
The findings suggest that the alveolar ridge split technique may be a suitable option for implant-supported full-arch rehabilitation in carefully selected patients with a completely edentulous maxilla and insufficient alveolar ridge width.
详细描述
This retrospective cohort study evaluated the clinical outcomes of the alveolar ridge split (ARS) technique used for full-arch implant-supported rehabilitation in patients with completely edentulous maxillae and insufficient horizontal alveolar ridge width.
Patients were divided into two groups according to the available alveolar ridge width and the surgical technique used. Group 1 consisted of patients with a maxillary alveolar ridge width of less than 5 mm who underwent one-stage alveolar ridge splitting with simultaneous implant placement. Group 2 consisted of patients with an alveolar ridge width of 5 mm or greater who underwent conventional implant placement without an alveolar ridge split procedure. All patients subsequently received implant-supported fixed prosthetic rehabilitation.
The primary outcome measure was implant survival, defined according to whether the implant remained in place during the follow-up period or had been removed. Secondary outcome measures included marginal bone loss and implant success. Implant success was evaluated according to the presence or absence of biological and prosthetic complications during follow-up.
Clinical and radiographic records were retrospectively reviewed. Marginal bone loss was assessed using radiographic measurements around the implants. Demographic and treatment-related variables were also evaluated.
A total of 47 patients with 332 implants were included in the study. The overall implant survival rate was 99.2%, and there was no statistically significant difference in implant survival between the ARS and conventional implant groups. Although marginal bone loss was slightly greater in the ARS group, this difference was not statistically significant. The overall implant success rate was 91.5%, with comparable success rates between the two groups. In both groups, longer follow-up duration was significantly associated with greater marginal bone loss.
研究设计
- 研究类型
- 观察性
- 观察模型
- 队列研究
- 时间视角
- 回顾性
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- Completely edentulous maxilla requiring implant-supported fixed prosthetic rehabilitation.
- Horizontal augmentation of the completely edentulous maxilla using the alveolar ridge split (ARS) technique in patients with insufficient ridge width (<5 mm), or conventional implant placement in patients with sufficient alveolar ridge width (≥5 mm).
- Dental implants placed at the treated maxillary sites.
- Rehabilitation with a fixed implant-supported prosthesis.
- A minimum follow-up period of 1 year.
排除标准
- Previous augmentation procedures or implant surgery in the maxilla.
- Serious systemic diseases, including diabetes mellitus or osteoporosis.
- Severe parafunctional habits.
- Smoking addiction.
- Pathological conditions affecting the oral soft or hard tissues.
研究组 & 干预措施
Group/Cohort 1
Group Description:
Patients with completely edentulous maxillae and insufficient horizontal alveolar ridge width (<5 mm) who underwent one-stage alveolar ridge split (ARS) with simultaneous dental implant placement, followed by implant-supported fixed prosthetic rehabilitation.
Intervention/Exposure:
Alveolar Ridge Split Technique
Intervention Description:
One-stage alveolar ridge splitting was performed to increase the horizontal width of the maxillary alveolar ridge, followed by simultaneous placement of dental implants.
干预措施: Conventional Dental Implant Placement (Procedure)
Group/Cohort 2
Group Title:
Non-ARS Group
Group Description:
Patients with completely edentulous maxillae and sufficient horizontal alveolar ridge width (≥5 mm) who underwent conventional dental implant placement without alveolar ridge splitting, followed by implant-supported fixed prosthetic rehabilitation.
Intervention/Exposure:
Conventional Dental Implant Placement
Intervention Description:
Dental implants were placed using conventional surgical procedures without an alveolar ridge split procedure because the available maxillary ridge width was sufficient for implant placement.
干预措施: Conventional Dental Implant Placement (Procedure)
结局指标
主要结局
Implant Survival
时间窗: From implant placement to the last available follow-up, with a minimum follow-up of 12 months.
Implant survival was defined as the presence of the dental implant in the mouth during the follow-up period. Implant failure was recorded when an implant had been removed or lost. Implant survival was assessed using clinical follow-up records and was compared between the ARS and Non-ARS groups.
次要结局
- Marginal Bone Loss(From implant placement to the last available radiographic follow-up, with a minimum follow-up of 12 months.)
- Implant Success(From implant placement to the last available clinical follow-up, with a minimum follow-up of 12 months.)
研究者
标识符
- NCT 编号
- NCT07846475
- 其他研究编号
- 2024/29
日期
- 首次提交
- (7天前)
- 首次发布
- (昨天)
- 主要完成日期
- (去年)
- 研究完成日期
- (去年)
- 最近核实
- (29天前)
- 最近更新
- (昨天)
监管与共享
- FDA 监管药物
- 否
- FDA 监管器械
- 否
- 个体参与者数据共享计划
- 否
- 是否有结果
- 否
Individual participant data will not be made publicly available due to patient confidentiality and ethical considerations related to retrospective clinical records. De-identified data may be considered for sharing upon reasonable request, subject to institutional and ethical approval.