Guided Equator overdentures for the lower jaw

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This prospective 3-year study followed patients receiving mandibular implant-supported overdentures placed using a fully guided static computer-assisted implant surgery (CAIS) workflow with Equator® attachments. Four implants were planned in a quadrilateral configuration using CBCT and placed through a static surgical guide to optimize position and angulation for overdenture support. Primary outcomes were implant survival, peri-implant soft tissue health, and marginal bone changes measured over 3 years. The protocol emphasizes digital planning and guided drilling to improve surgical accuracy and prosthetic fit in challenging edentulous mandibles.

Why it matters

Who can join: the full rules

* Inclusion Criteria:

  * Completely edentulous mandible requiring implant-supported overdenture rehabilitation
  * Adequate bone volume to accommodate four implants in a quadrilateral configuration, confirmed by cone-beam computed tomography (CBCT)
  * Age between 40 and 75 years
  * Good general health with no systemic contraindications to implant surgery
  * Willingness and ability to provide informed consent
  * Commitment to attend all scheduled follow-up visits over the 3-year study period
* Exclusion Criteria:

  * Uncontrolled systemic diseases (e.g., diabetes mellitus, osteoporosis)
  * History of radiotherapy in the head and neck region
  * Untreated oral infections or severe periodontal disease
  * Poor oral hygiene or inability to comply with maintenance protocols
  * Heavy smoking (\>10 cigarettes/day) or alcohol abuse
  * Known allergy or intolerance to materials or medications used in the study

Where it's running

• Faculty of Dentistry
  Shibīn al Kawm, Egypt Recruiting

Study contacts

• Principal investigator: Mohammed El-Sawy, PhD — Menoufia University
• Study coordinator: Mohammed A. El-Sawy, PhD
• Email: Dr_sawy@windowslive.com
• Phone: 00201061314522

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.