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Single Implant Crowns Supported by Narrow or Standard Diameter Implants in Molar Sites

RecruitingNAAges 18 Years - anyAllMohammed Bin Rashid University of Medicine and He…
NCT07073196 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

Standard dental implants require sufficient bone and spacing, which may not be available in all patients. To address these limitations, narrow diameter implants (≤3.5 mm) have been introduced as a less invasive alternative, especially useful for medically compromised patients or those avoiding bone grafts. However, narrow implants made of pure titanium have shown long-term biological and technical concerns. The introduction of titanium-zirconium (TiZr) alloy has improved mechanical strength, and several studies have demonstrated favorable outcomes with narrow TiZr implants. Yet, evidence remains limited regarding their exclusive use in high-load posterior (molar) regions. Prior studies report conflicting failure rates, potentially linked to prosthetic design and occlusal forces, but lack quantitative analysis of bite forces or prosthetic angles. Emergence angle, prosthetic platform wid

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📋 Eligibility rules (as published)
Inclusion Criteria: * Aged ≥ 18 years. * Require replacement of single missing molar tooth with dental implant in fully healed sites. * Controlled oral hygiene (full-mouth plaque and bleeding scores ≤ 25% at baseline). * Intact adjacent teeth and opposing dentition. * Fully healed sites (≥ 6 months) with limited bone availability in the horizontal bucco-lingual dimension (residual bone width of ≤ 6 mm) and minimal height of 8 mm. * Good compliance and commitment to attend follow-up review appointments. * Willing to provide informed consent. Exclusion Criteria: * Localized/generalized periodontitis. * Any medical condition that may contraindicate implant treatment (Bornstein et al., 2009). * Bone metabolic disease and/or taking medications that affect bone metabolism. * Long term use of non-steroidal anti-inflammatory medications. * History of malignancy, radiotherapy or chemotherapy. * Pregnant or lactating women. * Smokers. * Severe bruxism or parafunctional habits. * Large occlusal discrepancies.
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What it tests

  • Dental implant treatment (narrow implants)
  • Dental implant treatment (standard implants)
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Where

1 site
MBRU
Dubai, United Arab Emirates
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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