Apical Gap Length and Adaptation of Zirconia Post Using Intraoral and Extraoral Scan of Silicon Impression Technique

Evaluation of Apical Gap Length and Adaptation of Custom Made Zirconia Post Using Digital Intraoral and Extraoral Scan of Conventional Silicon Impression Technique. (Randomized Controlled Clinical Trial)

First, participants will undergo clinical and radiographic examination for taking all the needed preoperative records, then endodontically treated teeth preparation starting with removal of any carious or undermined tooth structure then ferrule preparation then followed by intra-radicular preparation and then placement of the provisional restoration. In the third visit we will take the final impression of the post space for each patient by using the intraoral scan and extraoral scan o f the conventional impression. Then assessment of the apical gap length by using digital periapical radiograph using the paralleling technique and assessment of post adaptation using replica technique followed by placement and permanent cementation of the zirconia custom made post and core restoration that showed less apical gap length and better adaptation then taking the final impression for the extracoronal restoration and finally permanent cementation of the extra coronal fixed restoration.

Study Overview

• Status: Not yet recruiting
• Conditions: Endodontically Treated Teeth
• Intervention / Treatment: Other: Direct intra-oral scanning technique for the post space.

Detailed Description

Examination and diagnosis:Selection and examination of the patients according to inclusion and exclusion criteria. Diagnosis of the patient's chief complaint and teeth that will be involved in this study will be done.

Primary impression will be taken to produce study cast. The patients will be asked to maintain good oral hygiene measures by using tooth brush twice daily.

Taking a professional pre-operative photo.

Tooth preparation procedure:

1. Removal of any carious or undermined tooth structure then coronal preparation will be done with a ferrule of at least 1.5 to 2 mm then followed by root canal preparation to an adequate length and diameter.
2. After tooth preparation, the final impression will be taken for the post space for each participant by using the intraoral scan and extraoral scan of the conventional silicone impression.
3. Fabrication of temporary restoration using composite resin temporary material and cemented using Zinc Oxide eugenol free temporary cement.

Fabrication of restoration:

Monolithic zirconia will be used for the fabrication of post and core restoration.

Assessment of the apical gap length by using digital periapical radiograph using the paralleling technique. Assessment of post adaptation using replica technique followed by placement and permanent cementation of the zirconia custom made post and core restoration that showed less apical gap length and better adaptation. Taking the final impression for the extracoronal restoration. Finally permanent cementation of the extra coronal fixed restoration.

• Study Type: Interventional
• Enrollment (Anticipated): 11
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Rv Mh El-boghdady, Ass lecturer; Phone Number: 01007172887; Email: rivan.elboghdady@dentistry.cu.edu.eg
• Study Contact Backup: Name: Ri Ma El-boghdady, Ass lecturer; Phone Number: 01007172887; Email: pinkparadise20@yahoo.com

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 16 years to 65 years (ADULT, OLDER_ADULT, CHILD)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

1. Age 16-65 years with endodontically treated anterior tooth or teeth & in need of custom made post and core restoration.
2. Be physically and psychologically able to tolerate conventional restorative procedures.
3. Subject tooth free of clinical symptoms & No requirement for endodontic retreatment expressed by the presence of periapical radiolucency around an endodontically treated tooth.
4. Adequate level of oral hygiene expressed by the absence of signs of periodontal inflammation, bleeding on probing and periodontal pocket depth <4 mm.
5. Capable of signing an informed consent

Exclusion Criteria:

1. Advanced periodontitis affecting the mobility of the teeth (mobility grade II or higher)
2. Pregnant or lactating females. 3. Patients with Psychiatric problems or unrealistic expectations.

4- Patients with endodontically treated teeth which is not functioning or showing any signs or symptoms that need endodontic retreatment.

5- Occlusion problems. 6- Absence of posterior stopper.

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Study Plan

How is the study designed?

Design Details

• Primary Purpose: OTHER
• Allocation: RANDOMIZED
• Interventional Model: PARALLEL
• Masking: DOUBLE

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
EXPERIMENTAL: Direct intra-oral scanning technique for the post space.; intervention will be the direct scanning of the prepared post space inside the patient mouth by using an intraoral scanner.	Other: Direct intra-oral scanning technique for the post space.; scanning of prepared dental post space directly inside the patient mouth by using an intra-oral scanner
ACTIVE_COMPARATOR: In-direct scanning of the conventional post space silicone impression.; The comparator will be extraoral scanning of the conventional sillicon impression of the prepared post space by using an extraoral scanner.	Other: Direct intra-oral scanning technique for the post space.; scanning of prepared dental post space directly inside the patient mouth by using an intra-oral scanner

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Apical gap length	measuring apical gap length by the digital Periapical radiograph using the paralleling technique.	through study completion, an average of 1 year".

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Post adaptation	Measuring post adaptation by using Replica technique	through study completion, an average of 1 year".

Collaborators and Investigators

• Sponsor: Cairo University
• Investigators: Principal Investigator: Rv Ma El-boghdady, Ass lecturer

Study record dates

Study Major Dates

• Study Start (ANTICIPATED): September 1, 2023
• Primary Completion (ANTICIPATED): September 1, 2023
• Study Completion (ANTICIPATED): December 1, 2024

Study Registration Dates

• First Submitted: July 23, 2022
• First Submitted That Met QC Criteria: July 25, 2022
• First Posted (ACTUAL): July 27, 2022

Study Record Updates

• Last Update Posted (ESTIMATE): February 9, 2023
• Last Update Submitted That Met QC Criteria: February 7, 2023
• Last Verified: February 1, 2023

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Stomatognathic Diseases; Tooth Diseases; Dental Pulp Diseases; Tooth, Nonvital
• Other Study ID Numbers: Theme 3 (FPD3-3-8)RM

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No