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Evaluation of Instrumentation Time and Obturation Quality Using Two Different Pediatric Rotary File Systems in Primary Molar Pulpectomy

28 giugno 2026 aggiornato da: Rania Fathy Mohammed Mohammed, Cairo University

Evaluation of Instrumentation Time and Obturation Quality Using Two Different Pediatric Rotary File Systems in Primary Molar Pulpectomy :(A Randomized Clinical Trial)

Preserving primary teeth is essential for maintaining normal chewing, speech development, and psychological well-being. Successful pulpectomy depends on effective chemomechanical preparation of the root canals while preserving their original anatomy. Although hand files are traditionally used for canal preparation in primary teeth, they are time-consuming and may increase the risk of procedural errors. Nickel-titanium (Ni-Ti) rotary systems have gained popularity because they improve canal shaping and reduce instrumentation time. Among these systems, Pediatric NiTi rotary files manufactured with AF-H Wire technology and Pediatric NiTi rotary files manufactured with blue Wire technology are specifically designed for pediatric use. However, evidence regarding their clinical performance remains limited, highlighting the need to compare their effectiveness, particularly in terms of instrumentation time and obturation quality

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Pulpectomia

Intervento / Trattamento

Tipo di studio

Interventistico

Iscrizione (Stimato)

Fase

Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Nome: Rania F. Mohamed, bachelor
Numero di telefono: +01000416751
Email: rania.fathy@dentistry.cu.edu.eg

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Bambino

Accetta volontari sani

Sì

Descrizione

Inclusion Criteria:

Healthy Cooperative children.
Children between the ages of four and eight years.
Restorable teeth with irreversible pulpitis.
Continuous bleeding after amputation of coronal pulp tissue.

Exclusion Criteria:

Molars that exhibit physiologic root resorption in excess of one-third.
Internal and external root resorption.
Presence of dental abscess, sinus tract or excessive mobility.
Acute spreading infection/cellulitis not manageable with local treatment.
Large periapical/furcation lesion with poor prognosis.
Teeth close to natural exfoliation.
Children with known allergies to study materials or medications used.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

Scopo principale: Trattamento
Assegnazione: Randomizzato
Modello interventistico: Assegnazione parallela
Mascheramento: Doppio

Numero di armi

Armi e interventi

Gruppo di partecipanti / Arm	Intervento / Trattamento
Comparatore attivo: Pediatric NiTi rotary files manufactured with AF-H Wire technology Pediatric NiTi rotary files manufactured with AF-H Wire technology are designed to improve flexibility and cyclic fatigue resistance while facilitating efficient canal preparation. Clinical studies have reported significantly reduced instrumentation time using this rotary system compared with conventional hand instrumentation. Furthermore, the system has demonstrated favorable canal shaping ability and a high percentage of optimally obturated canals, indicating its effectiveness in pediatric pulpectomy procedures	Dispositivo: Pediatric NiTi rotary files manufactured with AF-H Wire technology After preoperative radiographic assessment and administration of local anesthesia, lower primary molars will be isolated using a rubber dam and caries will be removed. Working length will be determined radiographically, and root canal preparation will be performed using pediatric NiTi rotary files manufactured with AF-H Wire technology with 1% sodium hypochlorite irrigation between files. Instrumentation time will be recorded throughout the procedure. The canals will then be dried and obturated with Metapex and zinc oxide eugenol, followed by restoration with glass ionomer cement and a stainless steel crown. Obturation quality will be evaluated postoperatively using digital radiography according to the Coll and Sadrian criteria.
Sperimentale: Pediatric NiTi rotary files manufactured with blue wire technology Pediatric NiTi rotary files manufactured with blue wire technology are a newer pediatric rotary system developed using blue heat-treated NiTi technology. Heat treatment enhances flexibility, resistance to cyclic fatigue, and fracture resistance, which are important characteristics when preparing the curved canals of primary teeth. Laboratory studies have shown that blue wire pediatric rotary files exhibit excellent mechanical properties and superior cyclic fatigue resistance compared with several other pediatric rotary systems. However, clinical evidence evaluating its performance in terms of instrumentation efficiency and obturation quality remains limited.	Dispositivo: Pediatric NiTi rotary files manufactured with blue wire technology After preoperative radiographic assessment and administration of local anesthesia, lower primary molars will be isolated using a rubber dam and caries will be removed. Working length will be determined radiographically, and root canal preparation will be performed using blue technology wire rotary files with 1% sodium hypochlorite irrigation between files. Instrumentation time will be recorded throughout the procedure. The canals will then be dried and obturated with Metapex, followed by restoration with glass ionomer cement and a stainless steel crown. Obturation quality will be evaluated postoperatively using digital radiography according to the Coll and Sadrian criteria.

Gruppo di partecipanti / Arm

Intervento / Trattamento

Comparatore attivo: Pediatric NiTi rotary files manufactured with AF-H Wire technology

Pediatric NiTi rotary files manufactured with AF-H Wire technology are designed to improve flexibility and cyclic fatigue resistance while facilitating efficient canal preparation. Clinical studies have reported significantly reduced instrumentation time using this rotary system compared with conventional hand instrumentation. Furthermore, the system has demonstrated favorable canal shaping ability and a high percentage of optimally obturated canals, indicating its effectiveness in pediatric pulpectomy procedures

Dispositivo: Pediatric NiTi rotary files manufactured with AF-H Wire technology

After preoperative radiographic assessment and administration of local anesthesia, lower primary molars will be isolated using a rubber dam and caries will be removed. Working length will be determined radiographically, and root canal preparation will be performed using pediatric NiTi rotary files manufactured with AF-H Wire technology with 1% sodium hypochlorite irrigation between files. Instrumentation time will be recorded throughout the procedure. The canals will then be dried and obturated with Metapex and zinc oxide eugenol, followed by restoration with glass ionomer cement and a stainless steel crown. Obturation quality will be evaluated postoperatively using digital radiography according to the Coll and Sadrian criteria.

Sperimentale: Pediatric NiTi rotary files manufactured with blue wire technology

Pediatric NiTi rotary files manufactured with blue wire technology are a newer pediatric rotary system developed using blue heat-treated NiTi technology. Heat treatment enhances flexibility, resistance to cyclic fatigue, and fracture resistance, which are important characteristics when preparing the curved canals of primary teeth. Laboratory studies have shown that blue wire pediatric rotary files exhibit excellent mechanical properties and superior cyclic fatigue resistance compared with several other pediatric rotary systems. However, clinical evidence evaluating its performance in terms of instrumentation efficiency and obturation quality remains limited.

Dispositivo: Pediatric NiTi rotary files manufactured with blue wire technology

After preoperative radiographic assessment and administration of local anesthesia, lower primary molars will be isolated using a rubber dam and caries will be removed. Working length will be determined radiographically, and root canal preparation will be performed using blue technology wire rotary files with 1% sodium hypochlorite irrigation between files. Instrumentation time will be recorded throughout the procedure. The canals will then be dried and obturated with Metapex, followed by restoration with glass ionomer cement and a stainless steel crown. Obturation quality will be evaluated postoperatively using digital radiography according to the Coll and Sadrian criteria.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato	Misura Descrizione	Lasso di tempo
instumentation time Lasso di tempo: same visit while performing the pulpectomy	The total instrumentation time will be recorded from the start of the procedure until the canals are fully prepared. Timing will begin with the insertion of the first file and will end after the final irrigation. It will be measured in minutes using a stopwatch	same visit while performing the pulpectomy

Misure di risultato secondarie

Misura del risultato	Misura Descrizione	Lasso di tempo
obturation quality Lasso di tempo: same visit after pulpectomy completion	The quality of obturation will be evaluated according to the criteria of Coll and Sadrian criteria (1996). The apical seal will measured in millimeters from the apical end of the canal filling material to the radiographic apex and scored as 1, 2, or 3. Apical seal Score 1 (Underfilling): was defined as filling in all canals extending more than 2 mm short of the apex. Score 2 (Ideal filling) was considered when the material reached up to 2 mm short of the radiographic apex or reached the working length in one or more canals. Score 3 (Overfilling) was recorded when the obturating material extended beyond the radiographic apex. Voids Obturated canals will be assessed for the presence or absence of voids.	same visit after pulpectomy completion

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Cairo University

Investigatori

Direttore dello studio: Sara A. Mahmoud, Professor, Cairo University

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

1 settembre 2026

Completamento primario (Stimato)

1 giugno 2027

Completamento dello studio (Stimato)

1 settembre 2027

Date di iscrizione allo studio

Primo inviato

20 giugno 2026

Primo inviato che soddisfa i criteri di controllo qualità

24 giugno 2026

Primo Inserito (Effettivo)

29 giugno 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

1 luglio 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

28 giugno 2026

Ultimo verificato

1 giugno 2026

Maggiori informazioni

Termini relativi a questo studio

Parole chiave

Altri numeri di identificazione dello studio

CU-rania-2026

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

Evaluation of Instrumentation Time and Obturation Quality Using Two Different Pediatric Rotary File Systems in Primary Molar Pulpectomy