Topical Application of PRF in Tooth Extraction Sockets Before Radiation Therapy for Head and Neck Cancer
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 34
- 试验地点
- 2
- 主要终点
- Wound healing between the two sites using the Wound Healing Index
研究概览
简要总结
The primary goal of this study is to observe whether PRP promotes the wound healing before a radiation therapy or not, compared to the natural healing of a tooth extraction socket.
Secondary aim is to monitore the effect on the pain perception.
详细描述
Head and neck cancer patients are required for a dental checkup before the beginning of the radiation therapy. During this checkup the patients gets a radiological and clinical examination in order to determine any tooth or alveolar bone bound inflammatory processes. Teeth associated to those conditions, or those which are likely to result in any of this, have to be extracted in order to prevent radiation associated complications such as osteomyelitis or further osteoradionecrosis of the jaw. In order to prevent this illness it is essential to not start before the healing of the post-extraction socket has reached a sufficient state, which is usually around 3 weeks post-extracitonem. To facilitate the healing, recent studies have shown an positive effect by applying PRF and a lower pain perception after surgical tooth removal. So far it is not documented for the prevention of a osteoradionecrosis of the jaw.
The patients who receive two or more tooth extractions before radiation therapy can participate in the study. The preliminary diagnosis has to be a head and neck tumor which is planned to be treated with ionizing radiation equally on both sides of the jaw(s). Both teeth have to have a similar size (e.g. molar and molar).
Patient and Doctors a blinded, the site of PRF Application is chosen by random. After surgical removal of the teeth one extraction socket is filled with PRF while the other is left for its natural formation of a blood clot.
During the first 7 days the patient protocols the pain perception and the amount of painkillers used for both sides of the jaw. After 7d, 14d, 21d, 30d, the wound healing is recorded until it reached is end in complete epithelization.
3 Months after the surgery a intermediate clinical examination is performed for early signs of any complication due to the radiation therapy. 6 Months after the surgery a OPG-radiograph will be taken to determine the bone healing comparing the test site and the control site.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- Double (Participant, Investigator)
盲法说明
Investigator as well as the Patient are blinded.
入排标准
- 年龄范围
- 18 Years 至 99 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Head and neck cancer with planed radiation therapy
- •Bilateral tooth extraction
- •Similar tooth size
- •Atraumatic tooth extractions without flap surgery
- •Patients age above 18y of age
排除标准
- •Prior radiation therapy in the head and neck area
- •Prior and current therapy with bisphosphonates or equivalent modern biologics
- •Patients during pregnancy or breastfeeding
结局指标
主要结局
Wound healing between the two sites using the Wound Healing Index
时间窗: around 4 Weeks
To compare the wound heeling, a modified Landry and Turnbull Healing Index is used. This index varies from 0 to 5, where 0 means no healing and 5 excellent healing.
次要结局
- PRF and Pain perception(around 7 days)
研究者
Sameh Attia
Senior Physician in the department of Oral and Maxillofacial Surgery,PD, Dr. med. dent., M.Sc.
University of Giessen