Alveolar Bone Loss, Periodontitis
Conditions
Brief summary
ADO is a bone regeneration technique, introduced by Chin and Toth in 1996 based in a biological process used for regenerate and consolidate bone between two bone segments obtained after osteotomy.These segments have been gradually separated by the process of distraction. ADO can be performed both horizontally (AHDO) and vertically (AVDO).
Detailed description
Distraction osteogenesis (DO) can be used to regenerate missing hard and soft tissue, Distraction osteogenesis relies on the body's ability to generate bone as two segments of bone are distracted apart. The osteotomies are created and the distraction device is placed. Typically, there is a latency phase of one week were a fibrovascular bridge is formed in the osteotomy site. This provides a template to generate new bone as the segments are distracted apart during the activation phase. Once the desired distraction has occurred, the device is left in place for a period of time. Once consolidation (typically 2 to 6 months) has occurred, the distraction device can be removed and implants can be placed. Chiapasco compared GBR to DO and found that both are equally effective in alveolar bone augmentation for implant placement and further stated that the long-term prognosis of vertical bone gain in DO is more predictable.
Interventions
Mini distractor is used to regenerate alveolar bone which is resorbed due various reasons. The distractor uses a winch-like submucosal activation component which is buried in the tissue; Flicking the winch turns the screw which moves the segment upwards in the direction of black arrow increasing height.
Sponsors
Study design
Eligibility
Inclusion criteria
* Acquired alveolar defects (Post extraction, Traumatic avulsion of teeth, Periodontal disease, After tumor resection), congenital alveolar defects, vertically deficient edentulous ridge in maxillary or mandibular anterior region with * Allen Type A moderate vertical ridge deficiency (3-6mm)
Exclusion criteria
* Medically compromised patients * Subjects who underwent radiotherapy or chemotherapy * Smokers and * Radiographic presence of less than 5mm of anterior maxillary and mandibular bone height
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| height of the residual bone | From baseline to 6months. | In radiographs, height of the residual bone will be taken as preoperative height. The gain in height of bone will be estimated after 6-months as postoperative bone height. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Degree of inflammation in gingiva | From baseline to 2-months | Degree of inflammation: degree of inflammation around the orthodontic implant was recorded by using the modified gingival index; 0 = normal gingiva; 1 = mild inflammation- slight change in color, slight edema, no bleeding on tissue manipulation. 2 = moderate inflammation- redness, edema and bleeding on tissue manipulation 3 = severe inflammation- marked redness and edema with ulceration and tendency for spontaneous bleeding. |
Countries
India