Comparison of digital impressions of subgingival margins with or without displacing gums and supragingival margins in a tooth prepared for full coverage crowns.

Accuracy of digital impressions at subgingival margins with and without gingival displacement cords in-situ compared to supragingival margins in prepared tooth for full coverage crowns: A split mouth clinical study. - Nil

Status

Active, not recruiting

Phases

Phase 3Phase 4

Study type

Interventional

Source

CTRI

Registry ID

CTRI/2023/07/055759

Enrollment

Registered

2023-07-27

Start date

Unknown

Completion date

Unknown

Last updated

2023-08-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: K039- Disease of hard tissues of teeth,unspecified Health Condition 2: K039- Disease of hard tissues of teeth,unspecified Health Condition 3: K00-K14- Diseases of oral cavity and salivary glands Health Condition 4: K00-K14- Diseases of oral cavity and salivary glands

Interventions

Intervention1: 1. Digital impressions using Intraoral Scanners of prepared tooth for full coverage crowns..: Intraoral scanners (IOS) are devices for capturing direct optical impressions in dentistry

Eligibility

Inclusion criteria

Inclusion criteria: 1. Patients who are willing to participate in the study. 2. Patients who are indicated for full coverage crowns of bilaterally similar tooth. 3. Patients with healthy gingiva. 4. Partially or completely dentulous patients. 5. Patients who are indicated for orthodontic bilateral extractions. 6. Patients with above 18 years of age. 7. Both male and female patients are included in this study.

Exclusion criteria

Exclusion criteria: 1. Completely edentulous patients. 2. Patients with periodontally compromised conditions like mobility, attachment loss, pockets, furcation involvement, etc. 3. Patients who may need to undergo crown lengthening procedure. 4. Patients with root caries of the teeth to be prepared.

Design outcomes

Primary

Measure	Time frame
1. To evaluate the accuracy of digital impressions at subgingival margins with gingival displacement cord in place while taking impressions of prepared tooth for full coverage crowns. 2. To evaluate the accuracy of digital impressions at subgingival margins immediately after removing the gingival displacement cord. 3. To compare the accuracy of digital impressions at subgingival margins gingival displacement cords in place & immediately after removing the cord. 4. To evaluate the accuracy of digital impressions at supragingival margins. 5. To compare the accuracy of digital impressions at supragingival and subgingival margins. 6. To compare the accuracy of digital impressions of supragingival and subgingival margins with & without gingival displacement cords in-situ with conventional impressions in prepared tooth for full coverage crowns.Timepoint: In 3-4 appointments with interval 4 days in between the appointments	—

Measure

Time frame

1. To evaluate the accuracy of digital impressions at subgingival margins with gingival displacement cord in place while taking impressions of prepared tooth for full coverage crowns. 2. To evaluate the accuracy of digital impressions at subgingival margins immediately after removing the gingival displacement cord. 3. To compare the accuracy of digital impressions at subgingival margins gingival displacement cords in place & immediately after removing the cord. 4. To evaluate the accuracy of digital impressions at supragingival margins. 5. To compare the accuracy of digital impressions at supragingival and subgingival margins. 6. To compare the accuracy of digital impressions of supragingival and subgingival margins with & without gingival displacement cords in-situ with conventional impressions in prepared tooth for full coverage crowns.Timepoint: In 3-4 appointments with interval 4 days in between the appointments

—

Secondary

Measure	Time frame
1. To comparatively evaluate the accuracy of digital impressions at subgingival margins with & without gingival displacement cords in-situ and supragingival margins of maxillary arch against mandibular arch in prepared tooth for full coverage crowns.Timepoint: In 3-4 appointments with interval 4 days in between the appointments	—

Countries

India

Contacts

Public ContactDr Praveen Badwaik

Terna Dental College and Hospital, Nerul.

praveen_badwaik@yahoo.co.in

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026