Conventional Impressions Versus Digital Impression Techniques for Implant Supported Screw Retained Prosthesis

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

8 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-04-30

Study Completion Date

2022-12-14

Brief Summary

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The purpose was to evaluate the accuracy of traditional and digital implant level impression procedures by using three-dimensional superimposition analysis , and evaluate the passive fit of screw- retained implant supported restorations fabricated using conventional and digital impression techniques in bilateral distal extension cases (class I kennedy classification)

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RECRUITING PHASE2

Detailed Description

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Eight patients who had missing all mandibular posterior teeth except first premolars were included in this study. In each patient, 4 implants were placed, 2 in each side to support 3 units screw retained zirconia restorations. Three months after implant placement, each patient underwent two implant level impression techniques (n=8) for each technique: Conventional implant impressions CII (pick-up, splinted transfers), and digital implant impressions DII were captured with TRIOS 3 Shape intraoral optical scanner. In this study, digital impression was considered as a reference data.

Conditions

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Partial Edentulism Class 1

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Accuracy of Implant impression techniques

Active comparative : digital implant impression Participants underwent intra-oral scanning digital impression

Experimental : conventional implant impression Participants underwent conventional impressions And right side of pt mouth received screw retained prosthesis constructed from conventional impression left side received screws retained prosthesis constructed from digital impression

Group Type EXPERIMENTAL

Implant placement

Intervention Type PROCEDURE

4 implants were placed , 2 implants in each side of the patient mouth opposite lower second premolar and second molar

4 implants were placed , 2 implants in each side of the patient mouth opposite lower second premolar and second molar

Interventions

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Implant placement

4 implants were placed , 2 implants in each side of the patient mouth opposite lower second premolar and second molar

4 implants were placed , 2 implants in each side of the patient mouth opposite lower second premolar and second molar

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* All participants have sufficient bone length and width for implant insertion.
* General health of the patients was evaluated by taking a full medical history to ensure that these patients were free from any systemic conditions that would have impaired implant osseointegration
* Good oral hygiene
* Sufficient inter-arch spaces
* The opposing arch was almost dentulous, and any missing teeth were restored using a fixed partial denture.

Exclusion Criteria

* parafunctional habits
* Heavy smoking
* Those patients with systemic diseases that may influence soft or hard tissue healing.
* Patients with a history of radiation therapy in the head and neck region.
* Patients with a history of radiation therapy in the head and neck region.

Minimum Eligible Age

30 Years

Maximum Eligible Age

55 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes