NCT04561167

Brief Summary

Does the cuspal reduction during cavity preparation for indirect resin composite restorations in endodontically treated teeth increase the clinical performance when compared to cavities prepared without cuspal reduction?

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Oct 2020

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 13, 2020

Completed
10 days until next milestone

First Posted

Study publicly available on registry

September 23, 2020

Completed
8 days until next milestone

Study Start

First participant enrolled

October 1, 2020

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2023

Completed
Last Updated

January 11, 2024

Status Verified

January 1, 2024

Enrollment Period

3 years

First QC Date

September 13, 2020

Last Update Submit

January 9, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Marginal adaptation

    Visual inspection with explorer and mirror by measuring the distance penetrated by the explorer at the tooth restoration interface. The explorer will be drawn across the surface of the restoration toward the tooth

    12 months

Secondary Outcomes (7)

  • Fracture of tooth and /or restoration

    12 months

  • Anatomic Form

    12 months

  • Surface texture

    12 months

  • post operative sensitivity

    12 months

  • Retention

    12 months

  • +2 more secondary outcomes

Study Arms (2)

Cuspal reduction in MOD Cavity in endodontically treated teeth

EXPERIMENTAL

Cavity design is of prime importance for the restoration of endodontically treated teeth. The cavity design plays an important role in the protection of the remaining tooth structure as well as the restoration. Cuspal reducuction and further coverage by the CAD/CAM generated indirect resin composite restoration has been proved in literature by the retrospective study done by (Chrepa V et al 2014) which studied 189 posterior endodontically treated teeth receiving indirect composite onlays with a median follow up time of 37 months and suggested this type of restoration as a viable option with 100% tooth survival and 96.8% restoration survival.

Other: Cuspal reduction in MOD cavity in endodontically treated teeth

No cuspal reduction in endodontically treated teeth

ACTIVE COMPARATOR

In the present study, choosing the comparator to be the cavity design without cuspal reduction and further coverage (inlay) is done as an attempt to reduce the application of inlays in endodontically treated teeth. In accordance to the in-vitro study done by (M. D. Al Amri et al 2016) which tested the fracture resistance of endodontically treated mandibular first molars with conservative access cavity and different restorative techniques, catastrophic failures were highest in the composite group (100%), followed by the inlay and the amalgam groups (91.67%) and this was referred to the adhesive bonding mechanism of the composite restoration and the wedging effect of the inlay and the amalgam restorations (Rivera EM andWalton RE 2015)

Other: No cuspal reduction in MOD cavity in endodontically treated teeth

Interventions

Not only the quality of endodontic treatment that affects the prognosis of the endodontically treated tooth, but the subsequent restorative treatment as well. Coverage, Endocrowns, Onlays, Inlays Restorations on Fracture Resistance of Endodontically Treated Molars, it was found that the worst results came to the inlay restorations and this was attributed to geometric form of preparation that exert a wedging force acting to split the tooth when under occlual stress however, onlay and full coverage direct the force along the long axis by overlaying the cusp tips and a portion of buccal and lingual surface thus opposing the wedging action created by internal design of restoration (Magne P and Belser C. et al 2003) That's why, choosing such a design as a comparator to the design of the cuspal reduction and further coverage (onlay) is crucial to show the importance of cuspal coverage for the indirect resin composite restoration in the endodontically treated teeth.

Cuspal reduction in MOD Cavity in endodontically treated teeth

In an invitro study done by (Ahmed Hamdy 2015) investigating the effect of Full The amount of lost internal tooth structure as well as the coronal hard tissue in an endodontically treated tooth is considered the main factors that make the tooth susceptible to biomechanical failure when compared to a vital tooth. (Guo J et al 2016) .

No cuspal reduction in endodontically treated teeth

Eligibility Criteria

Age13 Years - 18 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Only co-operative patients approving to participate in the trial.
  • Good oral hygiene.
  • Medically free adult patients.
  • The age range of the patients is 13-18 years
  • Patients havind Endodontically treated molars with remaining two walls.
  • Teeth with no periapical lesion or radiolucency.
  • Root canal treatment finished from maximum two weeks with no clinical symptoms.
  • Prepared cavity with no undermined enamel walls.
  • The thickness of the remaining walls not less than 2 mm.
  • Functioning tooth with presence of an opposing.
  • Healthy periodontium

You may not qualify if:

  • Old age patients.
  • Patients with disabilities.
  • Patients having systemic diseases or severe medically compromised.
  • Patients with of severe bruxism, clenching or temporomandibular joint disorders.
  • Poor oral hygiene.
  • Teeth with severe dilacerations.
  • Teeth with periapical lesions.
  • Teeth with visible cracks.
  • Teeth with internal or external root resorption.
  • Teeth with calcified root canals.
  • Teeth with mobility.
  • Teeth with undermined enamel walls.
  • Non-functioning tooth with no opposing tooth.
  • Heavy occlusion or signs of severe attrition.
  • Severe periodontal affection.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hoda omar fouda

Cairo, 11311, Egypt

Location

MeSH Terms

Conditions

Tooth, Nonvital

Condition Hierarchy (Ancestors)

Dental Pulp DiseasesTooth DiseasesStomatognathic Diseases

Study Officials

  • Hoda Fouda, master

    Cairo University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
The principle investigator

Study Record Dates

First Submitted

September 13, 2020

First Posted

September 23, 2020

Study Start

October 1, 2020

Primary Completion

October 1, 2023

Study Completion

October 1, 2023

Last Updated

January 11, 2024

Record last verified: 2024-01

Data Sharing

IPD Sharing
Will share

Undecided: It is not yet known if there will be a plan to make IPD available.

Shared Documents
STUDY PROTOCOL
Time Frame
expecting to have all the data during october 2022
Access Criteria
IPD through contacting the main author Hoda.fouda@bue.edu.eg
More information

Locations