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Related Experiment Video

Updated: Jun 11, 2026

Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition
07:32

Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition

Published on: February 23, 2024

Maxillary implant-retained overdentures: telescopic versus LOCATOR attachments.

Nidhi Parmar1

  • 1MClinDent Prosthodontics Specialty Trainee, Eastman Dental Institute, London, UK. nidhi.parmar@nhs.net.

Evidence-Based Dentistry
|June 9, 2026
PubMed
Summary

Telescopic attachments offered superior retention for implant-retained maxillary overdentures compared to LOCATOR attachments. However, LOCATOR attachments resulted in less marginal bone loss over 24 months.

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Area of Science:

  • Dental Prosthetics
  • Implantology
  • Oral Rehabilitation

Background:

  • Complete edentulism necessitates effective prosthetic solutions.
  • Implant-retained overdentures offer improved function and aesthetics.
  • Attachment systems are crucial for overdenture stability and patient satisfaction.

Purpose of the Study:

  • To compare the retention of telescopic versus LOCATOR attachments for implant-retained maxillary overdentures.
  • To evaluate marginal bone loss around implants supporting these overdentures over a 2-year period.
  • To assess the long-term clinical performance of both attachment systems.

Main Methods:

  • A prospective two-arm parallel randomized controlled trial (RCT) was conducted.
  • 40 patients with complete maxillary edentulism received four-implant retained overdentures.

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Last Updated: Jun 11, 2026

Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition
07:32

Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition

Published on: February 23, 2024

Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla
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Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla

Published on: October 18, 2021

  • Patients were randomized to either telescopic or LOCATOR attachment groups, with follow-up at 1, 12, and 24 months.

    • Main Results:

    • Telescopic attachments demonstrated significantly higher retention forces than LOCATOR attachments at all time points.
    • Marginal bone loss was significantly greater in the telescopic group at 12 and 24 months.
    • One implant failure occurred in the telescopic group; both systems met success criteria.

    Conclusions:

    • Telescopic attachments provide superior retention for maxillary overdentures.
    • LOCATOR attachments are associated with less marginal bone loss, indicating potentially better peri-implant tissue health.
    • Both attachment systems are viable options for implant-retained maxillary overdentures, with distinct performance characteristics.