Repair Versus Replacement of Failed Restorations in Primary Teeth
Repair Versus Replacement of Failed Restorations in Primary Teeth: Protocol for a Non-Inferiority Randomized Clinical Trial
Přehled studie
Postavení
Postavení
Podmínky
Podmínky
Intervence / Léčba
Intervence / Léčba
Typ studie
Typ studie
Zápis (Odhadovaný)
Zápis
Fáze
Fáze
- Nelze použít
Kontakty a umístění
Studijní kontakt
Studijní kontakt
- Jméno: Tamara K Tedesco, PhD
- Telefonní číslo: +5511954866622
- E-mail: tamarakt@usp.br
Studijní místa
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São Paulo
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São Paulo, São Paulo, Brazílie, 05508-000
- University of São Paulo, School of Dentistry
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Kontakt:
- Tamara K Tedesco, PhD
- Telefonní číslo: +5511954866622
- E-mail: tamarakt@usp.br
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Kontakt:
- Camila C Cabral, PhD
- Telefonní číslo: +5511996254588
- E-mail: camila.cabral@usp.br
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Dílčí vyšetřovatel:
- Aline S Gusmão, DDS
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Kritéria účasti
Kritéria způsobilosti
Kritéria způsobilosti
Věk způsobilý ke studiu
- Dítě
Přijímá zdravé dobrovolníky
Popis
Inclusion Criteria:
- Children aged 4 to 8 years;
- Presence of at least one defective restoration in a primary molar, involving no more than 3 surfaces;
- Absence of clinical and radiographic signs of pulp involvement;
Exclusion Criteria:
- Tooth without pulp vitality or requiring endodontic treatment;
- Loose or mobile restoration;
- Presence of fistula, abscess, or history of pain;
- Tooth mobility incompatible with the physiological exfoliation timeline;
- Parents/guardians who do not consent to participation by signing the ICF, or children who do not assent to participate in the study.
Studijní plán
Jak je studie koncipována?
Detaily designu
- Primární účel: Léčba
- Přidělení: Randomizované
- Intervenční model: Paralelní přiřazení
- Maskování: Žádné (otevřený štítek)
Počet zbraní
Zbraně a zásahy
Skupina účastníků / ArmSkupina účastníků / Arm |
Intervence / LéčbaIntervence / Léčba |
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Experimentální: Repair
Repair of Failed restoration in primary teeth.
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Prior to the procedure, when needed, local anesthesia with 2% lidocaine and 1:100,000 epinephrine will be used, with relative isolation (cotton rolls and saliva ejector).
The defective area will be clinically identified.
When present, carious tissue will be selectively removed with hand instruments (dentin curettes) suited to the cavity, preserving as much of the intact original restoration as possible.
If no hand instrument fits, the cavity will be enlarged with a small spherical diamond bur at high speed under cooling.
The surface will be conditioned with 20% polyacrylic acid (GC Cavity Conditioner) for 10 s, rinsed abundantly, and dried with cotton pellets.
For proximal surfaces, a metal matrix and wedge will be placed before the GIC.
The capsule will be activated, mixed for 10 s, inserted with an applicator, and adapted by digital pressure with petroleum jelly.
Occlusion will be checked with articulating paper and adjusted; surface protection applied with petroleum jelly.
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Aktivní komparátor: Replacement
Replacement of Failed Restoration in primary teeth.
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Prior to the procedure, when needed, infiltrative local anesthesia with 2% lidocaine and 1:100,000 epinephrine will be administered.
Relative isolation will be used, with cotton rolls and a saliva ejector.
Complete removal of the defective restorative material will be performed with spherical diamond burs at high speed under cooling, complemented by round burs at low speed to remove remaining restorative material.
Selective removal of carious tissue, when present, will be carried out with hand instruments (dentin curettes) suited to the cavity, preserving soft or leathery dentin according to the depth of the lesion.
The new restoration will then be placed following the same protocol described for the repair group: conditioning with 20% polyacrylic acid (GC Cavity Conditioner) for 10 s, rinsing and removal of excess water; placement of a metal matrix and wedge, when needed; insertion of the GIC into the cavity; adaptation by digital pressure with petroleum jelly; occlusal adjustment; a
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Co je měření studie?
Primární výstupní opatření
Primární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
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Restoration survival
Časové okno: 24 months
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Restoration survival will be assessed based on clinical evaluation of the restorations at 6, 12, 18, and 24 months. A restoration will be considered to have survived when it remains clinically satisfactory according to the following criteria. Single-surface restorations will be considered satisfactory when scored as 0 (restoration present and satisfactory), 1 (restoration present, with a slight marginal defect and/or surface wear of less than 0.5 mm in depth, with no need for repair), or 7 (restoration present, with gradual wear involving larger areas of the restoration but less than 0.5 mm in depth at the deepest point, with no need for repair), according to Frencken et al. (1996). Multiple-surface restorations will be considered satisfactory when scored as 00 (restoration present and satisfactory) or 10 (restoration present, with a slight marginal defect and/or surface wear of less than 0.5 mm in depth, with no need for repair), according to Rôlevald et al. (2006). |
24 months
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Sekundární výstupní opatření
Sekundární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
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Treatment success
Časové okno: 24 months
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Treatment success at 24 months will be assessed as a binary outcome.
All participants will be clinically evaluated at 24 months, and each treated tooth will be classified as either successful or unsuccessful.
Treatment will be considered successful when the treated tooth requires no operative reintervention during the 24-month follow-up period and remains asymptomatic, according to the clinical criteria described above.
Natural exfoliation of the treated tooth during the follow-up period will also be considered a successful outcome.
Treatment failure will be defined as the need for operative reintervention due to disease progression or treatment failure, including endodontic treatment or extraction.
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24 months
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Parents' and Child's Preference
Časové okno: Before randomization and prior to treatment
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Before randomization, parents or guardians and the child will receive a standardized explanation of the two therapeutic approaches under investigation (replacement and repair of restorations).
To aid comprehension, illustrative images generated by artificial intelligence will be presented, depicting each procedure in a standardized manner.
Parents or guardians and the child will then be asked: "If you could choose, which treatment would you prefer?"
Responses will be recorded as: replacement, repair, or no preference.
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Before randomization and prior to treatment
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Treatment Time
Časové okno: From the beginning to the completion of the treatment procedure
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The total treatment time will be measured by a research assistant using a digital stopwatch.
Timing will start at the beginning of the clinical intervention and stop immediately after its completion.
Time will be recorded and expressed in minutes (min).
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From the beginning to the completion of the treatment procedure
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Child's Perception
Časové okno: Immediately after the procedure (Day 0)
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The child's perception of the treatment will be assessed immediately after completion of the procedure using the Facial Image Scale (FIS).
The scale will be presented by the research assistant, in the absence of the operator, in order to minimize the professional's influence on the response.
The child will be asked to indicate the image that best represents how they felt during the treatment, following the question: "How did you feel during the treatment?"
The FIS consists of five facial images ranging from a very happy to a very sad expression, allowing assessment of the child's acceptance of the experience.
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Immediately after the procedure (Day 0)
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Parents'/Guardians' Satisfaction
Časové okno: Immediately after the procedure (Day 0)
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Immediately after completion of the treatment, parents or guardians will answer the following question: "How satisfied are you with the treatment performed on your child?"
The response will be recorded on a five-point Likert scale, ranging from very dissatisfied to very satisfied.
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Immediately after the procedure (Day 0)
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Parents'/Guardians' Willingness to Choose the Treatment Again
Časové okno: 30 days after the procedure
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At 30 days after the procedure, parents or guardians will be presented again with illustrative images of the two therapeutic approaches, accompanied by the same standardized explanation used in the initial assessment.
They will then be asked: "If you could choose again, which treatment would you choose for your child?"
Responses will be recorded as repair, replacement, or no preference.
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30 days after the procedure
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Cost-effectiveness
Časové okno: 24 months
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Additionally, a cost-effectiveness analysis will be conducted comparing the repair and replacement of defective restorations in primary molars over 24 months of follow-up.
Restoration survival over this period will be used as the effectiveness measure for the economic analysis.
The analysis will adopt the perspective of the Brazilian public health system and will consider only direct treatment costs.
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24 months
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Treatment Cost
Časové okno: Immediately after the procedure (Day 0)
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The direct costs associated with the repair and replacement of restorations will be compared, considering the clinical treatment time and materials actually used in each procedure.
Treatment time will be measured by a research assistant who is not involved in performing the interventions and will be used to estimate the dental professional's labor cost based on the cost per hour of professional work.
Material costs will be estimated based on the actual amount consumed during each procedure and the prices obtained from three quotations from different suppliers, with the mean value of the quotations used for cost calculation.
Costs will be expressed in Brazilian reais (BRL), based on the prices prevailing during the study period.
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Immediately after the procedure (Day 0)
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Spolupracovníci a vyšetřovatelé
Sponzor
Sponzor
Vyšetřovatelé
Vyšetřovatelé
- Vrchní vyšetřovatel: Camila C Cabral, PhD, University of Sao Paulo
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia (Odhadovaný)
Začátek studia
Primární dokončení (Odhadovaný)
Primární dokončení
Dokončení studie (Odhadovaný)
Dokončení studie
Termíny zápisu do studia
První předloženo
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Aktuální)
První zveřejněno
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Aktuální)
Poslední zveřejněná aktualizace
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Naposledy ověřeno
Naposledy ověřeno
Více informací
Termíny související s touto studií
Klíčová slova
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Časový rámec sdílení IPD
Kritéria přístupu pro sdílení IPD
Typ podpůrných informací pro sdílení IPD
- PROTOKOL STUDY
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