Bite changes after hall crowns measured in kids
NCT ID NCT07134114
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how placing a special type of crown (Hall crown) on decayed baby molars changes the way children's teeth fit together. Researchers will measure tooth movements and bite contact areas in 60 children over one month using digital scans. The goal is to understand these changes better, not to test a new treatment.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 60 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2025
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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7 to 10 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
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
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Ankara Yıldırım Beyazıt University Faculty of Dentistry
RECRUITINGAnkara, Keçiören, Turkey (Türkiye)
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