Effect Of Occlusal Materials Used For All On Four Mandibular Implant Prosthesis With PEEK Framework
NCT ID: NCT06159530
Last Updated: 2023-12-06
Study Results
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Basic Information
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COMPLETED
NA
30 participants
INTERVENTIONAL
2022-01-20
2023-10-10
Brief Summary
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Methods of Evaluation
1- Occlusal force analysis using digital occlusal device (occluscan).
The evaluation periods will be done at time of insertion (T0),6 month (T1),12 month(T2) and 18 month(T3) after framework insertion.
Detailed Description
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The patients will be selected according to the following criteria:
1. lack of satisfaction of mandibular conventional dentures due to denture instability.
2. Atrophy of mandibular ridges with insufficient bone.
3. They were healthy, free from any systemic diseases relating to bone resorption.
4. All patients have sufficient inter-arch space \>15 mm.
5. Maxillary and mandibular residual alveolar ridges covered by healthy non-inflamed mucosa with even compressibility.
6. Normal maxilla-mandibular relationship (class I Angle's classification).
7. All patients will have mandibular bone height not less than 8-10mm as verified by cone beam CT.
8. Sufficient inter-arch space not less than 23 mm as verified by tentative jaw relation. And restorative space not less than14 mm as verified by putty index technique.
Exclusion criteria included:
1- Systemic disorders affecting bone (such as uncontrolled diabetes mellitus and osteoporosis).
2- Local or general contraindication for surgical procedures. 3- History of chemotherapy or radiation therapy to the head and neck area. 4- Habits as heavy smoking and alcoholism. 5- Patients with T.M.J disorders or poor neuromuscular co-ordination.
1. For all patient's conventional complete denture will be constructed and adjusted for insertion and delivery.
2. A cone beam C.T will be done for each patient to determine the bone quality and quantity.
3. A surgical stent will be designed and fabricated to allow accurate implant placement of two axially placed anterior implants and two distally tilted posterior implants by about 30 degree to support mandibular overdenture.
4. Surgical placement of implant fixtures on its sites will be done.
5. Multiunit abutments were screwed to the distal implants.
6. The conventional mandibular denture will be modified to act as immediate fixed prosthesis that replace lost teeth and gingival tissues.
7. After three months, the Polyetheretherketone (PEEK) frame that connects the four implants will be constructed using digital scan and CAD CAM manufacturing.
8. The milled frame was fixed to the metal caps using DTK cement
9. The BioHPP framework will have prepared abutments projecting from it. After processing, the framework will be tried in patient mouth for passive fit.
10. Wax interocclusal record was made to establish the occlusal relationship with opposing teeth.
According to the artificial teeth, the patients will be divided into two groups:
* Group (I): PEEK framework veneered with nanocomposite resin(visio-lign)
* Group (II): PEEK framework veneered with zirconia
11. The inner surface of the artificial teeth will be etched using hydrophosphoric acid then silane will be used and light cured resin cement will be used for cementation of the artificial teeth to the PEEK framework
12. The occlusal scheme used with the opposing maxillary denture will be lingualized balanced occlusion to enhance the stability of mandibular implant overdentures.
Methods of evaluation:
1- Occlusal force analysis using digital occlusal device (occluscan).
The evaluation periods will be done at time of insertion (T0), 6 month (T1), 12 month (T2) and 18 month (T3) after framework insertion.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
SINGLE
Study Groups
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PEEK framework veneered with nanocomposite resin(visio-lign)
patients recieved 4 implants according to All on 4 concept then peek framework was delivered and veneered with nano-composite resin (visio-lign) as an occlusal material
dental implants
4 dental implants placed in the mandible according to all-on 4 concept
peek framework
peek framework screwed to multi-unit abutments of 4-implants
visio-lign nano composite
peek framework veneered with nano composite (visio-lign) as an occlusal material
PEEK framework veneered with zirconia crowns
patients recieved 4 implants according to All on 4 concept then peek framework was delivered and veneered with zirconia crowns as an occlusal material
dental implants
4 dental implants placed in the mandible according to all-on 4 concept
peek framework
peek framework screwed to multi-unit abutments of 4-implants
zirconia crowns
peek framework covered with zirconia crowns as an occlusal material
Interventions
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dental implants
4 dental implants placed in the mandible according to all-on 4 concept
peek framework
peek framework screwed to multi-unit abutments of 4-implants
visio-lign nano composite
peek framework veneered with nano composite (visio-lign) as an occlusal material
zirconia crowns
peek framework covered with zirconia crowns as an occlusal material
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
45 Years
65 Years
MALE
Yes
Sponsors
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Mansoura University
OTHER
Responsible Party
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Mohamed shady
Assistant Professor
Principal Investigators
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Mansoura U Faculty of dentistry
Role: PRINCIPAL_INVESTIGATOR
Mansoura University Faculty of Dentistry, Prosthodontics department
Locations
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Mansoura University, Faculty of dentistry
Al Mansurah, , Egypt
Countries
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Other Identifiers
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A03021121
Identifier Type: -
Identifier Source: org_study_id