The feasibility of laser induced fluorescence spectrum in the detection of chronic periodontitis
KANG Shuai
YUAN Huan-huan
WEI Wei
GUO Yi-luo
WANG Shu-min
RONG Xiao-pei
JIANG Yuan
WANG Lu-lu
HOU Yu
Abstract：AIM: To study the feasibility of laser induced fluorescence spectrum in the detection of chronic periodontitis.METHODS: 8 patients with chronic periodontitis(CP group) and 12 subjects without CP(control group) were included.The laser was used as an excitation light source to examine 4 first molars of the subjects.Probing depth (PD),clinical attachment loss (CAL),bleeding on probe (BOP) and plaque index (PLI) of the teeth were measured.Then 20 extracted teeth collected from the patients with severe periodontitis and 20 extracted healthy teeth because of orthodontics or the third molar were selected for in vitro study by laser irritation.SPSS 20.0 software was used to analyze the relevance of the red fluorescence with periodontitis, and with periodontal index respectively.RESULTS: CP group showed more teeth with red fluorescence than the control group (P<0.05), and higher periodontal indexes of the teeth with red fluorescence than those of the normal teeth(P<0.05).The extracted teeth with severe periodontitis showed more red fluorescence positive ones than the normal teeth(P<0.05).CONCLUSION:The intensity of red fluorescence is related with periodontitis.
Keywords：chronic periodontitislaser induced fluorescenceiron protoporphyrin IX
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 342-345 )