Pulpal Blood Flow In Human Permanent Teeth With Different Root Formation

The purpose of this study was to examine the relation between root formation and the pulpal blood flow (PBF) in human young permanent teeth using laser Doppler flowmeter. Recordings were made on clinically healthy upper permanent central incisors in healthy participants (age: 7 years 7 months to 16 years 2 months). According to Nolla's method, the state of roots of the teeth was classified into four groups by radiographs. The mean PBF signals tended to decrease with the progress of the root formation. PBF measurement was considered to be applicable to assess root formation in young permanent teeth.