Patient Satisfaction and Maximum Biting Force in Co-Cr Bar Implant Overdenture (NCT06401187) | Clinical Trial Compass
CompletedNot Applicable
Patient Satisfaction and Maximum Biting Force in Co-Cr Bar Implant Overdenture
Egypt30 participantsStarted 2022-11-10
Plain-language summary
Statement of problem. Patient satisfaction and maximum biting force from patients who wear 2-implant-retained overdentures with different constructed bar attachments can be improved.
Purpose. This randomised controlled clinical trial assessed patient satisfaction and maximum biting force with three differently constructed bar-retained overdentures (conventional casting, Milling and 3D printing CAD/CAM techniques) within a one-year follow-up.
Material and methods. A total of 60 implants were placed in 30 mandibular jaws(30 participants). The jaws were randomly assigned to 1 of the 3 treatment groups: a 10 conventional technique cast Co-Cr bar attachment, a 10 Co-Cr CAD/CAM milled bar attachment, and a 10 Co-Cr CAD/CAM 3D-printed bar attachment all groups were connected to 2 implants in the canine area. Patient satisfaction was tested after 6 months, and 12 months for each group; the results were collected, tabulated, and statistically analysed using a Pair-wise comparisons test and the Kruskal-Wallis test. Maximum biting force was tested at baseline,3 months, 6 months, and 12 months for each group; the results were collected, tabulated, and statistically analysed using a Pair-wise comparisons test and ANOVA test.
Who can participate
Age range
50 Years – 80 Years
Sex
ALL
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Patients with sufficient residual alveolar bone quantity and quality anterior to the mental foramen to receive self-taping root form titanium implants.
. Maxillary and Mandibular residual alveolar ridges covered with healthy mucosa without any remaining roots or local inflammation.
. Patients with sufficient inter-arch space (at least 15 mm) to have overdenture and bar attachment.
. U-shaped lower ridge to avoid the lingual placement of the bar that occurs with a V-shaped ridge.
. Patients with skeletal and dental class I.
Exclusion criteria
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
. Patients with systemic diseases such as cardiovascular diseases, any disease of immunity, febrile conditions such as epilepsy, metabolic disorders, osteoporosis, hyperparathyroidism, and impaired psychological conditions that might affect the oral tissues or the bone metabolic rate.
. Patients with local and general contraindications for surgical procedures.
. Patients with TMJ or neuromuscular disorder.
. Patients with Para functional habits such as bruxism and clenching.
. Patients with impacted teeth or remaining roots.
. Alcoholic patients.
. Patients with a history of radiotherapy in the head and neck region.