Comparative Study Of Biting Force Of Injection Molded PEEK and Bre.Flex Materials For Bounded Removable Partial Dentures (Randomized Clinical Trial)
试验速览
- 阶段
- 不适用
- 入组人数
- 20
- 主要终点
- change in Biting force
研究概览
简要总结
The aim of the present study is to evaluate the biting force of upper removable partial denture constructed from two different flexible thermoplastic materials.
详细描述
The patient will be treated in visits designated as follows:
Visit 1: Preoperative records, clinical, radiographic examination (panoramic and periapical x-rays for evaluation the crown-root ratio, the apical condition of the abutment and their alveolar bone support of abutment) and primary impression will be performed with irreversible hydro-colloid impression material (alginate), The impressions will be poured with type IV dental stone to obtain diagnostic casts .
Visit 2: Maxillary Face-bow will be recorded. The diagnostic casts will be mounted on semi adjustable articulator in centric occluding relation to evaluate the interarch distance and occlusal plane.
Visit 3: primary surveying is performed. Special trays will be constructed and Mouth preparation will be performed by preparing guiding planes and rests seats will be prepared opposing to the edentulous area. Final impression will be taken by elastomeric impression material. The impression will be poured into type IV dental stone in order to obtain master cast. The master cast will be surveyed. The proposed design will be as follows: metal framework base saddle for edentulous areas on both sides connected with palatal strap. Aker's clasp on all abutments with buccal retention.
Visit 4: the metal framework is tried into the patient's mouth. Jaw relation is recorded.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- Triple (Participant, Care Provider, Investigator)
入排标准
- 年龄范围
- 45 Years 至 55 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •i. All patients must have Kennedy class III modification I upper partially edentulous ridges.
- •ii. The remaining teeth have good periodontal condition, with no signs of attrition or gingival recession.
- •iii. Male or female patient with age range (45-55) and in good medical condition iv. All patients have skeletal Angle's class I maxillo-mandibular relationship and have sufficient interarch distance.
- •v. Free from any systemic or neuromuscular disorder that might affect chewing efficiency of masticatory muscles.
- •vi. Free from any tempro-mandibular joint disorder. vii. The patients have good oral hygiene and low caries index.
排除标准
- •i. Patients having abnormal habits as bruxism or clenching ii. Patients having hormonal disorders as diabetes, thyroid or parathyroid hormonal diseases were not included.
- •iii. Teeth with compromised bone support. iv. Patient with xerostomia or excessive salivation. v. Patient with abnormal tongue behavior and/or size.
研究组 & 干预措施
group 1
patients will receive partial denture constructed from breflex material
干预措施: bre.flex (Other)
group 2
patients will receive partial denture constructed from PEEK material
干预措施: PEEK (Other)
结局指标
主要结局
change in Biting force
时间窗: 1 month
the change in biting force will be recorded three times. The first week at the time of insertion measuring the biting force immediately after partial denture insertion. The third week measuring biting force of the partial denture. The fourth week measuring biting force of the partial denture. the biting force will be measured by I-load sensor.
次要结局
未报告次要终点
研究者
Arwa Mabrouk Ayad Issa
principal investigator
Cairo University