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Evaluation of 3D-printed Space Maintainers Versus Conventional Space Maintainer : a Randomized Clinical Trial

Clinical Evaluation of Digitally Fabricated 3D-printed Band and Loop Space Maintainers Versus Conventional Band and Loop Space Maintainer : a Randomized Clinical Trial

Status
Not yet recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06750068
Enrollment
50
Registered
2024-12-27
Start date
2025-03-20
Completion date
2026-06-01
Last updated
2025-03-19

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

Conditions

Tooth Loss

Brief summary

This study aims to compare the clinical evaluation and patients' satisfaction of space maintainers produced by digital workflow using the 3D-printing method (3D-SMs) versus conventional band and loop space maintainers (C-SMs) produced by traditional methods.

Interventions

Digitally fabricated #d printed space maintainer

Stainless steel space maintains

Sponsors

Cairo University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
DOUBLE (Subject, Outcomes Assessor)

Masking description

double blinded

Intervention model description

3D printed band and loop space maintainer Conventions band and loop space maintainer

Eligibility

Sex/Gender
ALL
Age
4 Years to 8 Years
Healthy volunteers
Yes

Inclusion criteria

* Lower first permanent molar in active state of eruption * Patient and parent showing cooperation and compliance. * Medically free children. * According to space analysis available space is less than or equal to needed space * Primary molar loss in the last 1 week due to caries, infection, and resorption (to eliminate possible space loss) * Caries free, non-restored buccal surfaces of the mandibular second primary molars and deciduous canines.

Exclusion criteria

* Children with previous allergies to stainless steel. * There was less than one year left for the permanent tooth to erupt (to prevent possible abutment toot loss) * The patient's oral hygiene is not sufficient and has periodontal problems (to accurately assess the periodontal effects)

Design outcomes

Primary

MeasureTime frameDescription
Survival rate1 yearDecementation, debonding, solder breakage, loop breakage, band breakage, and abutment tooth fracture will be evaluated clinically for both space maintainers

Secondary

MeasureTime frameDescription
Gingival health of the abutment0,6,12 monthsGingival index 0 = normal gingiva; 1 = mild inflammation: slight change in color, slight edema, no bleeding on probing; 2 = moderate inflammation: redness, edema, and glazing, or bleeding on probing; 3 = severe inflammation: marked redness and edema, tendency toward spontaneous bleeding
Plaque accumulation on the abutment tooth0,6,12 monthsPlaque index Score 0: No Plaque Score 1:Thin plaque layer at the gingival margin, only detectable by scraping with a probe Score 2: Moderate layer of plaque along the gingival margin; interdental spaces free, but plaque is visible to the naked eye Score 3:Abundant plaque along the gingival margin; interdental spaces filled with plaque
Patients' satisfaction about the impression techniqueImmediately after the im- pression/scanningFive- question survey 1. Was the impression easy and fun? 2. Did you have nausea during impression? 3. Did you feel any discomfort during the impression (taste, odor, foreign body)? 4. Did the impression take a short time? 5. Would you like to have this impression experience again?

Contacts

Primary ContactAya Alaa Abdelaziz Elsayed, Assistant lecturer
aya.alaa@dentistry.cu.edu.eg+201090802757

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026