NCT06558968

Brief Summary

Compare two band and loop space maintainers made from two tooth colored materials; Polyetherethherketone (PEEK) and monolithic Zirconia (BruxZir) as regards to:

  • Clinical performance of space maintainers in terms of frequency of debonding or fracture of the appliance and health of adjacent gingiva during a one-year follow up.
  • Wear of the opposing teeth.

Trial Health

57
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jan 2024

Geographic Reach
1 country

1 active site

Status
recruiting

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

August 30, 2021

Completed
2.3 years until next milestone

Study Start

First participant enrolled

January 3, 2024

Completed
8 months until next milestone

First Posted

Study publicly available on registry

August 19, 2024

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2025

Completed
Last Updated

August 19, 2024

Status Verified

August 1, 2024

Enrollment Period

12 months

First QC Date

August 30, 2021

Last Update Submit

August 16, 2024

Conditions

Outcome Measures

Primary Outcomes (2)

  • Clinical performance

    regarding debonding or fracture of the appliance. if debonding or fracture occur then this means failure.

    1 year

  • Gingival health

    Gingival Index of Loe and Silness. where score 0 indicates normal gingiva, score 1 mild inflammation (slight change in color, slight edema but no bleeding on probing. score 2 indicates moderate inflammation (redness, edema, bleeding on probing and score 3 refers to severe inflammation (marked redness, edema, ulceration with sponatnoeus bleeding.

    1 year

Secondary Outcomes (1)

  • Wear of the opposing tooth

    1 year

Study Arms (2)

polyetheretherketone

ACTIVE COMPARATOR

PEEK 'Polyetheretherketone' Victrex® is a type of polymer with suitable mechanical and physical properties. It is a resilient material with high flexural strength and resistance to deformation. Therefore, it can be used in fixed prosthesis and space maintainers

Other: aesthetic functional space maintainers

monolithic zirconia

ACTIVE COMPARATOR

BruxZir® is a type of monolithic zirconia with higher flexural strength and fracture toughness than the classic zirconia and can withstand the changes in temperature in the oral cavity. Therefore it can be used as a space maintainer

Other: aesthetic functional space maintainers

Interventions

evaluate the use of Polyetheretherketone 'PEEK' and monolithic zirconia 'Bruxzir' as esthetic functional band and loop space maintainers.

monolithic zirconiapolyetheretherketone

Eligibility Criteria

Age6 Years - 11 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Children requiring bilateral extraction of mandibular first primary molars or those with previously extracted molars no more than 6 months prior to intervention (11) .
  • Existence of teeth on the mesial and distal side of edentulous area.
  • Angle's Class I molar relationship and/or flush terminal/mesial step primary molar occlusion
  • No periapical and/ or furcural pathological condition related to abutment teeth.
  • Presence of tooth germ of the succeeding tooth (mandibular first premolars).
  • Presence of more than 1 mm of bone overlying the successor tooth germ

You may not qualify if:

  • Carious abutment teeth requiring pulp therapy.
  • Carious abutment primary teeth requiring a full coverage restoration.
  • Patients with history of bruxism or/and clenching.
  • Patients with medical, intellectual or physical disabilities.
  • Patients with abnormalities as posterior cross-bite, open bite, and deep bite

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ain Shams University

Cairo, Egypt

RECRUITING

Study Officials

  • Nagwa Khattab, Professor

    Ainshams U

    STUDY DIRECTOR

Central Study Contacts

Mariem Wassel, Professor

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, CARE PROVIDER
Masking Details
articipants will be blinded to the type of intervention. Teeth treated will be assigned codes so that outcome evaluators at the follow up appointments are blinded. On the other hand, the operator/ primary investigator cannot be blinded, as she is already familiar with the nature of the materials used. For statistical analysis, codes will also assure blinding and confidentiality. For the patient, both types of space maintainers will have the same color and design.
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
principal investigator

Study Record Dates

First Submitted

August 30, 2021

First Posted

August 19, 2024

Study Start

January 3, 2024

Primary Completion

January 1, 2025

Study Completion

January 1, 2025

Last Updated

August 19, 2024

Record last verified: 2024-08

Locations