NCT05134714

Brief Summary

This study is to evaluate and compare CAD/CAM zircon space maintainer and conventional metal of band and loop space maintainers in terms of plaque deposits and gingival health and, the success rate of the appliances in terms of: survival time, cement loss and appliance breakage. And to compare both appliances in terms of patient satisfaction. This study consists of two parts: in vivo part (split mouth RCT) and in vitro part: In vivo study: Its sample size was found to be (36) cases (i.e. 18 case per group). Sample size calculation was performed using G\*Power version 3.1.9.7 Sample size will be increased by about 10% to compensate for the drop-out. In this in vivo study split mouth will be randomly divided into two groups: Group 1: Conventional metal band and loop space maintainer Group 2: CAD/CAM zircon band and loop space maintainer In vitro study: its sample size was found to be (24) samples (i.e. 8 samples per group). Sample size calculation was performed using G\*Power version 3.1.9.7 Sample size will be increased by about 10% to compensate for the drop-out. Grouping: The zirconia specimen divided randomly into three groups according to type of cements: Group 1: Self-adhesive resin cement Group 2: Resin-modified glass ionomer cement Group 3: Universal bioactive cement

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
18

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jun 2024

Shorter than P25 for not_applicable

Status
unknown

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

November 2, 2021

Completed
24 days until next milestone

First Posted

Study publicly available on registry

November 26, 2021

Completed
2.5 years until next milestone

Study Start

First participant enrolled

June 1, 2024

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2024

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2024

Completed
Last Updated

January 31, 2024

Status Verified

January 1, 2024

Enrollment Period

5 months

First QC Date

November 2, 2021

Last Update Submit

January 30, 2024

Conditions

Keywords

space maintainerCAD/CAM space maintainer

Outcome Measures

Primary Outcomes (3)

  • Clinical success: Evaluate and compare CAD/CAM zircon space maintainer and conventional metal of band and loop space maintainers in terms of plaque deposits (Plaque index)

    Plaque index, that is running in a scale from 0 to 3 where 0 means no plaque,1 film of plaque adhering to free gingival margin,2 moderate accumulation of soft deposits on the tooth and gingival margin, and 3 means abundance of soft debris.

    Up to 12 months

  • Clinical success: Evaluate and compare CAD/CAM zircon space maintainer and conventional metal of band and loop space maintainers in terms of Gingival health, by assessing the gingival index.

    Gingival health, scores from 0 to 3 where 0 no inflammation, 1slight redness no bleeding on probing, 2 redness and bleeding on probing, and 3 severe inflammation with edema and ulceration to spontaneous bleeding,47 and patient satisfaction.

    up to 12 months

  • The success rate of appliances in terms of survival time.

    Clinical evaluation of success rates of the modalities regarding survival time by checking both space maintainers and identify if there is cement loss or breakage of the appliances during the follow up period.

    Up to 12 months

Secondary Outcomes (1)

  • Compare both appliances in terms of patient satisfaction.

    Up to 12 months

Study Arms (2)

Group 1(study group): CAD/CAM zircon band and loop space maintainer

EXPERIMENTAL

Solid monolithic zirconia material which utilizes CAD/CAM technology for its designing and milling of the restoration will be used for fabrication of the space maintainer.

Device: CAD/CAM zircon band and loop space maintainerDevice: Conventional metal band and loop space maintainer

Group 2(control): Conventional metal band and loop space maintainer

ACTIVE COMPARATOR

Stainless steel band and loop space maintainer will be made. Stainless steel appropriate band will be selected according to the size of the abutment teeth then design of the loop will be obtained, then will be send to the laboratory for soldering.

Device: CAD/CAM zircon band and loop space maintainerDevice: Conventional metal band and loop space maintainer

Interventions

Solid monolithic zirconia material which utilizes CAD/CAM technology for its designing and milling of the restoration will be used for fabrication of the space maintainer.

Also known as: CAD/CAM space maintainer
Group 1(study group): CAD/CAM zircon band and loop space maintainerGroup 2(control): Conventional metal band and loop space maintainer

Stainless steel appropriate band will be selected according to the size of the abutment teeth and then design of the loop will be obtained, then will be send to the laboratory for soldering.

Also known as: metal band and loop space maintainer
Group 1(study group): CAD/CAM zircon band and loop space maintainerGroup 2(control): Conventional metal band and loop space maintainer

Eligibility Criteria

Age4 Years - 7 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Patients aged :
  • A-minimum:4years B-maximum: 7 years old
  • Patients who are medically free
  • Premature loss of bilateral primary molar.
  • Sound and healthy buccal and lingual surfaces of selected primary molars.

You may not qualify if:

  • Children with dental abnormalities (cross bite, open bite, and deep bite).
  • Parafunctional oral habits.
  • Carious lingual and buccal surfaces of primary molars.
  • Lack of patient/parent compliance and cooperation.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Officials

  • Gehan G. Allam, PHD

    Ain Shams Univesity

    STUDY CHAIR

Central Study Contacts

Sara A. Younes, MS

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Masking Details
Double
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Assignment
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
assistant teacher

Study Record Dates

First Submitted

November 2, 2021

First Posted

November 26, 2021

Study Start

June 1, 2024

Primary Completion

November 1, 2024

Study Completion

December 1, 2024

Last Updated

January 31, 2024

Record last verified: 2024-01

Data Sharing

IPD Sharing
Will not share