Bite effects of Hall crowns on baby molars

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

The study will recruit 60 healthy children aged 7–10 with at least two carious primary molars and good cooperative behavior. One eligible primary molar per child will be randomly selected and patients stratified into four groups by tooth type and jaw (maxillary/mandibular first or second primary molars). Baseline digital intraoral scans will be taken after completion of other dental treatments, then a Hall crown will be placed and occlusal changes will be tracked using digital model analysis. The trial compares the degree and pattern of occlusal adaptation between molar groups to see if tooth position influences bite changes.

Why it matters

Who can join: the full rules

Inclusion Criteria:

Inclusion Criteria for Participants

* No skeletal or dental anomalies,
* ASA (American Society of Anesthesiologists) physical status classification of I or II ,
* Frankl Behavior Rating Scale score of 3 or 4,
* In the mixed dentition stage,
* Fully erupted permanent first molars in occlusal contact at maximum intercuspation
* No acute dental pain or need for emergency treatment,
* Presence of at least two primary molars with carious lesions scored as 3, 4, or 5 according to the ICDAS (International Caries Detection and Assessment System),
* Presence of an antagonist tooth for the molar planned to receive Hall Technique,
* Provision of verbal and written informed consent by the participant and legal guardian after reading or listening to the consent form and fully understanding its content.

Inclusion Criteria for Tooth

Based on Clinical Examination:

* No history of prolonged pain in response to thermal or chemical stimuli, or spontaneous pain suggestive of irreversible pulpitis,
* No sensitivity to percussion or palpation,
* Absence of both pathological and physiological mobility,
* No signs of swelling, fistula, or discoloration,
* Sufficient remaining tooth structure to retain a preformed stainless steel crown.

Based on Radiographic Examination:

* Radiolucent lesion associated with dental caries located within the outer one-third to two-thirds of the dentin, with a visible band of normal dentin between the lesion and the pulp,
* At least two-thirds of root length present,
* No signs of internal or external pathological or physiological root resorption,
* Intact lamina dura and normal periodontal ligament space,
* No periradicular bone loss surrounding the roots,
* No calcified masses in the pulp chamber.

Exclusion Criteria:

* Individuals with serious systemic or psychological conditions
* Participants who fail to attend follow-up appointments
* Those who exhibit excessive fear or anxiety reactions and are unable to cooperate during treatment

Where it's running

• Ankara Yıldırım Beyazıt University Faculty of Dentistry
  Ankara, Keçiören, Turkey (Türkiye) Recruiting

Study contacts

• Study coordinator: Ayşe I. Cihan, Professor
• Email: isilcihan@yahoo.com
• Phone: +905325095961

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

• Silver Diamine Fluoride for Caries in Baby Teeth in Routine Dental Care

  This study tests whether applying 38% silver diamine fluoride in everyday dental practice can stop decay in primary teeth of children 14 and younger.

  Recruiting Consorci Sanitari de l'Alt Penedès i Garraf · Vilanova i la Geltrú, Barcelona · NCT07926828

• Nano Silver Fluoride vs. Silver Diamine Fluoride for Kids’ Cavities

  This study tests whether Nano Silver Fluoride can stop decay in children as well as Silver Diamine Fluoride.

  Recruiting A.T. Still University of Health Sciences · Mesa, Arizona · NCT07861321

• Digital Caries Risk Questionnaire: does it match CAMBRA in Egyptian adults

  A digital self‑administered caries risk questionnaire is being tested to see how well it matches the CAMBRA risk assessment in Egyptian adults who visit the dentist.

  Recruiting October University for Modern Sciences and Arts · Giza, Sixth of October · NCT07716254

• First permanent molars restored with Cention N in children

  This trial tests whether restoring both first permanent molars with Cention N in children aged 8-10 is beneficial for clinical results, x-ray findings, and daily oral health quality of life over 12 months.

  Recruiting Minia University · Minya, Asyut Governorate · NCT07703176

• Ozone therapy to boost remineralization of early caries in kids

  This study tests whether adding ozone therapy to a remineralizing gel helps children aged 6–12 remineralize early, non-cavitated caries lesions better than the gel alone.

  Recruiting Marmara University · Istanbul, Maltepe · NCT07671651

• Dental health in children with specific learning disabilities

  This study will test the dental caries and oral hygiene of 7–12 year-olds with specific learning disabilities and compare them with healthy peers.

  Recruiting Alanya Alaaddin Keykubat University · Alanya, Antalya · NCT07611981

How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.