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Clinical Trials/NCT06933927
NCT06933927Not yet recruitingNot Applicable

Evaluation of Gingival Health and Bacterial Adhesion of Bioflx Crowns Compared to Zirconia Crowns on Primary Molars: A Randomized Clinical Trial

Cairo University1 site in 1 country28 target enrollmentStarted: June 1, 2025Last updated:
Conditions
Interventions

Trial Snapshot

Phase
Not Applicable
Status
Not yet recruiting
Enrollment
28
Locations
1
Primary Endpoint
Gingival Health

Study Overview

Brief Summary

The goal of this clinical trial is to evaluate the Evaluation of Gingival Health and Bacterial Adhesion of Bioflx Crowns Compared to Zirconia Crowns on Primary Molars of Bioflx crowns compared to zirconia crowns in the restoration of primary molars. The main question[s] it aims to answer is there are the differences in bacterial adhesion and gingival health between bioflx and zirconia crowns The study will also assess the clinical performance of both types of crowns in terms of bacterial adhesion , child and parents satisfaction,as well as preparation time.

Detailed Description

Dental caries is an oral disease most ubiquitous among children, characterized by a series of demineralization and remineralization cycles. If left untreated, it can progress to cavitated lesions. Usually, the familiar method of managing multi-surface carious lesions in primary teeth with stainless steel crowns .Streptococcus mutans is considered to be the main colonizer and primary etiological factor in caries progression as it stimulates the production of glucans from the food substrates. Research has indicated that S. mutans can be isolated from plaque samples. Consequently the long-term success of a restored tooth is significantly affected by the adhesion of S. mutans to the preformed crowns.Bacterial adhesion on zirconia are sparse. An in vitro study reported the initial bacterial adhesion on the surface of zirconia to be less compared with resins. When a primary tooth is restored with a full-coverage restoration, it establishes a fresh environment conducive to microbial adhesion. Bioflx Crowns the first flexible, durable, and esthetic preformedcrown for primary molars .BFCs are monochromatic, metal-free, tooth-colored crowns used in the medical device industry having high strength, flexibility, and durability. These crowns are autoclavable and are similar to SSC in tooth preparation. Additionally, they offer a cost benefit compared to zircon crowns,

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Treatment
Masking
Double (Participant, Care Provider)

Eligibility Criteria

Ages
4 Years to 8 Years (Child)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • •patients aged 4-8 years.
  • •decayed in primary molars require full-coverage crowns.
  • •No history of systemic diseases affecting oral health.
  • •Cooperative children.

Exclusion Criteria

  • •patients with severe medical conditions, badly decayed in primary molars and trauma.

Arms & Interventions

Bioflex crowns

Experimental

Bioflx Crowns (BFCs) the first flexible, durable, and esthetic preformedcrown for primary molars .BFCs are monochromatic, metal-free, tooth-colored crowns used in the medical device industry having high strength, flexibility, and durability. These crowns are autoclavable and are similar to SSC in tooth preparation. Additionally, they offer a cost benefit compared to zircon crowns

Intervention: (Group A: Bioflx crowns) (Other)

Zirconia crowns

Experimental

zirconia crowns are frequently chosen as a comparator due to their established clinical performance and favorable biological properties. Studies have demonstrated that zirconia crowns exhibit lower bacterial adhesion, particularly of Streptococcus mutans, compared to stainless steel crowns (SSCs). highly polished and smooth surface of zirconia, which minimizes plaque accumulation and subsequent gingival inflammation.

Intervention: (Group B) : Preformed Zirconia crown (Other)

Outcomes

Primary Outcomes

Gingival Health

Time Frame: 6 months

plaque index using Silness\& Löe plaque index:0 - 3 0: no plaque.1: film at gingival margin.2: moderate accumulation.3: abundance of plaque.

Gingival health

Time Frame: 6 months

Gingival index using Löe\& Silness :0 - 3 0: healthy gum.1: mild discoloration and edematous gingiva, no bleeding on probing.2: red oedematous and shiny gingiva,bleeding on probing.3: red oedematous and ulceration gingiva, spontaneous bleeding.

Secondary Outcomes

  • Bacterial adhesion(2 weeks)
  • child and parental satisfaction(6 months)
  • Preparation time(6 months)

Investigators

Sponsor Class
Other
Responsible Party
Principal Investigator
Principal Investigator

Salma Ahmed Abdelrazig Mohammed

principal investigator

Cairo University

Study Sites (1)

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