Dental caries of primary molars
Conditions
Interventions
Group 1:Hall technology
Group 2:Traditional metal preformed crown technology
Group 3:Hall technology and Traditional metal preformed crown technology
Sponsors
West China School of Stomatology, Sichuan University
Eligibility
Sex/Gender
All
Age
3 Years to 7 Years
Inclusion criteria
Inclusion criteria: 1. Aged 3 to 7 year children with deciduous molar cavities located less than 2mm on the mesiodistal surface, less than 2.5mm on the lips, cheeks, tongue and palate, and no pulpitis symptoms; 2. The chid can accept relevant intraoral operations, the child and his family voluntarily sign an informed consent form, there is no systemic or systemic disease, and the temporomandibular joint and oral and jaw system are normal.
Exclusion criteria
Exclusion criteria: 1. Those who cannot complete the persistent return visitor; 2. Children with with metal allergy, children who cannot cooperate with treatment, and children who may need magnetic resonance examination.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Chewing efficiency;Overlay and overlape of anterior teeth;Relationship between fangs and molars;Occlusal area;TMJ questionnaire survey;Determination of jaw position;Jaw force;Chewing pattern; | — |
Secondary
| Measure | Time frame |
|---|---|
| plaque index;gingival index;pronounce; | — |
Countries
China
Contacts
Public ContactHe Pengcheng
West China School of Stomatology, Sichuan University
Outcome results
None listed