CD vs IOD Opposing Mandibular IOD : Bone Height Changes of the Premaxilla

The experimental design description adhered to the guidelines provided by the Consolidated Standards of Reporting Trials (CONSORT) statement. The present study is planned as a randomized clinical trial, ensuring that both the patients and the examiner are unaware of the treatment allocation.

The trial will include A total of twenty male adult patients unsatisfied with their maxillary complete denture seeking to enhance their mastication and esthetics. The participants will be recruited from the Outpatient clinic at Faculty of Dentistry, Mansoura University.

each patient will receive 2 implants with attachments to assist their maxillary complete denture then follow up every 6 months for checkups.

No active advertisement will be used for participant recruitment, and instead, a convenience sample will be formed. Prior to participating in the study, each patient will be required to provide informed consent by signing a consent form. The protocol of the study was approved by Mansoura University's ethics committee before initiation

Inclusion criteria

• General good health without any systemic diseases affecting bone resorption such as uncontrolled diabetes or osteoporosis. This was confirmed through taking medical history and clinical examination by a physician.
• Having angel's class I maxillo-mandibular relationships.
• Presence of sufficient bone quality and quantity in the anterior region of maxilla and mandible which allow inserting implants of at least 3.75 mm diameter and 10 mm length. This was verified by Preoperative low dose Cone Beam (C.T) d) Presence of sufficient restorative space (a minimum of 15 mm must be available from the mucosa covering the crest of the residual ridge to the proposed occlusal plane), this was confirmed by tentative jaw relation.

(e) Having maladaptive maxillary conventional complete denture.

Exclusion criteria

• Uncontrolled systemic diseases such as: uncontrolled hypertension, or uncontrolled cardiovascular disease
• metabolic disorders such as diabetes mellitus
• Patients with compromised immune systems as (Long term immunosuppressant and corticosteroid drug
• TMJ dis orders and neuromuscular diseases
• Patient with abnormal habits as clenching and bruxism, Smoking patient, Uncooperative patients.