Deep pits and fissures
Conditions
Interventions
Observation group:None
Sponsors
Hospital of Stomatology, Sun Yat-Sen University
Eligibility
Sex/Gender
All
Age
7 Years to 9 Years
Inclusion criteria
Inclusion criteria: 1. The inclusion criteria of participants: (1) Age from 7 to 9 years old; (2) With the ability to take photos of first permanent teeth; (3) Informed consent of participant and guardian. 2. Inclusion criteria of images: (1) No caries, fillings, restorations, and pit and fissure sealers that affect the morphology; (2) Clear occlusal surface without inclination and block; (3) No obvious food residue, plaque, calculus, saliva foam or blood; (4) No block of equipment or stains on the mirror; (5) Moderate exposure without defocus.
Exclusion criteria
Exclusion criteria: 1. Exclusion criteria of participant: (1) Limited mouth opening with an opening grade less than 3cm; (2) Received restoration or filling treatment of the first permanent molar. 2. Exclusion criteria of images: (1) With caries, fillings, restorations, and pit and fissure sealers that affect the morphology; (2) The photo is underexposed or overexposed, or is obvious defocus; (3) With impaction or blocking on the occlusal surface; (4) With the block of equipment or stains on the mirror.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The depth of pit and fissure in permanent first moalr; | — |
Countries
China
Contacts
Public ContactLiangyue Pang
Hospital of Stomatology, Sun Yat-Sen University
Outcome results
None listed