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Comparing Stainless Steel Crowns With Prefabricated Resin Crowns in Primary Molar Teeth

A 36-Month Prospective Randomized Clinical Pilot Trial Comparing Stainless Steel Crowns With Prefabricated Resin Crowns in Primary Molar Teeth

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06713330
Enrollment
50
Registered
2024-12-03
Start date
2024-05-17
Completion date
2027-12-29
Last updated
2026-06-29

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

Conditions

Dental Caries

Keywords

Pediatric dentistry

Brief summary

The main reason for this research study is to learn more about a new flexible white dental crown (BioFLX) by comparing it to an existing flexible metal crown (Stainless Steel Crown). It is of interest to see if this new white crown is clinically equivalent to the existing silver crown that is mainly used in pediatric dentistry. A potential participant for this study would have cavities that require a crown, a type of filling that covers the entire tooth, and recommended dental work be done under general anesthesia.

Interventions

Device: BioFLX crown

DEVICE3M Stainless Steel Crown

3M Stainless Steel Crown

Sponsors

Children's Hospital Medical Center, Cincinnati
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

The purpose of this 36-month prospective, randomized controlled, split-mouth pilot study, is to compare a new prefabricated resin crown material against the gold standard stainless steel crown in primary molars that require full coverage restorations. The results of this study can help determine if resin polymer crowns clinically perform like stainless steel crowns, and if they are an acceptable esthetic alternative treatment option for a full coverage restoration of a primary molar.

Eligibility

Sex/Gender
ALL
Age
2 Years to 5 Years
Healthy volunteers
Yes

Inclusion criteria

* CCHMC pediatric dental patients between the ages of 2 years to 5 years and 11 months, at the time of recruitment, who present to any CCHMC dental clinic location and then are found to need full mouth dental rehabilitation. * Patients who speak the most common languages at CCHMC will be able to be recruited for the study. o English, Spanish, Arabic, Uzbek, Nepali, Chinese Mandarin, Russian, French. * These patients must qualify for treatment at the CCHMC dental in-office general anesthesia (IOGA) area or the Procedure Center (PC). IOGA and the PC will be selected as a venue of treatment to control behavioral factors. This is not specific to the study and would occur due to their treatment needs. * Participants will have at least one pair of contralateral primary molars with the need for a full coverage restoration in the same arch. * For example, tooth A \& J, B \& I, S \& L, or T \& K * For each participant, a minimum of one SSC or one PRC will be randomly assigned via a split mouth design to be placed as part of the study. * Need for Full coverage and high caries risk will be defined by AAPD Best Practice Guidelines 2,16 o Teeth With 1. Extensive caries 2. Cervical decalcification 3. Developmental defects (e.g., hypoplasia, hypocalcification) 4. When failure of other available restorative materials is likely (e.g., interproximal caries extending beyond line angles, patients with bruxism) 5. Following pulpotomy or pulpectomy 6. For definitive restorative treatment for high caries-risk children as defined by the AAPD 7. For patients who exhibit high caries risk and whose treatment is performed under sedation or general anesthesia. This would be normal and not specific to the study. * Participants who consent to the study, and who can be available for follow-up recall appointments. * All participants will be ASA I or ASA II as defined by the American Society of Anesthesiologists.15

Exclusion criteria

* Participants who do not meet inclusion criteria will be excluded. * Participants whose teeth do not meet the inclusion criteria. * Participants who do not wish to participate in the study. * Patients who do not wish to or cannot reliably return for follow-up visits. * Red dye allergy as patient will not be able to be plaque disclosed during follow-up visits. * Participants who do not speak English, Spanish, Arabic, Uzbek, Nepali, Chinese Mandarin, Russian, French.

Design outcomes

Primary

MeasureTime frameDescription
The United States Public Health Service Restorative criteria36 monthsStudy criteria being selected would be: Gingival Health, Plaque retention, Occlusal wear, and crown retention as defined by the following Alpha, Bravo, Charlie. Gingival Health according to the Modified Gingival Index (MGI): Alpha (A) normal gingiva Bravo (B) mild inflammation: Charlie (C) moderate inflammation Plaque Retention according to the Simplified Oral Hygiene Index (OHI -S): Alpha (A) 0, 1 Bravo (B)2 Charlie (C) 3 Occlusal Wear: Alpha (A) occlusal surface intact Bravo (B) wear of occlusal surface without tooth surface exposure Charlie (C) wear of occlusal surface with tooth surface exposure. Crown retention: Alpha (A) Intact crown Bravo (B) partial loss of crown material Charlie (C) Crown lost

Countries

United States

Contacts

CONTACTPatrick Ruck, DDS
Patrick.ruck@cchmc.org7575602623

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 30, 2026