Partial Edentulism Class 1
Conditions
Keywords
Digital impression, implant impression, impression accuracy, Digital work flow
Brief summary
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)
Detailed description
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.
Interventions
PROCEDUREImplant 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
Sponsors
Tanta University
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
30 Years to 55 Years
Healthy volunteers
Yes
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.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Accuracy of digital and conventional implant impression techniques in partially edentulous patient | 12 months | GOM Inspect 2016, Gom GmbH,) that was used to superimpose the Standard tessellation language (STL) datasets of conventional open tray impression technique onto the STL file of the reference (digital implant impression technique) to assess the accuracy and calculate the three-dimensional deviations of scan bodies in color- coding map in micrometers (µm) |
Countries
Egypt
Outcome results
None listed