Validation of a Cumulative Hypersensitivity Index (CHI) for dentine hypersensitivity severity

Ryan C Olley, Ron Wilson, Rebecca Moazzez, David Bartlett

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


AIM: This study developed the Schiff Index into a Cumulative Hypersensitivity Index (CHI) to measure dentine hypersensitivity (DH) severity per subject. It validates this score by investigating if it compares to one comprising a percentage score from all tooth surfaces and as a highest score per subject.

MATERIALS AND METHODS: Overall, 350 subjects were recruited from hospital and general practice in south-east England. Buccal, occlusal and oral Schiff Index scores were collected and percentages calculated based on scores 1, 1 and above, 2 and above and 3. CHI scores and highest Schiff Index scores were also recorded per subject. Spearman correlation coefficients (p-values) assessed the relationship between CHI scores, Schiff Index percentages and Schiff Index highest per subject.

RESULTS: In subjects with a Schiff Index score of 1 or more on at least one tooth surface (indicating DH was present), correlation of the CHI score to the Schiff Index percentage score was 0.982 (p < 0.001). Correlation of the sextant score to the highest Schiff Index score per subject was 0.963, (p < 0.001). DH was more likely on tooth surfaces with gingival recession (p < 0.001) and without bleeding on probing (p < 0.01).

CONCLUSIONS: This study has validated a novel CHI score to indicate DH severity per subject and may help guide clinical management.

Original languageEnglish
Pages (from-to)942-7
Number of pages6
JournalJournal of Clinical Periodontology
Issue number10
Publication statusPublished - Oct 2013


  • Adolescent
  • Adult
  • Dentin Sensitivity
  • Female
  • Gingival Hemorrhage
  • Gingival Recession
  • Humans
  • Male
  • Observer Variation
  • Periodontal Pocket
  • Reproducibility of Results
  • Rural Health
  • Severity of Illness Index
  • Suburban Health
  • Urban Health
  • Young Adult
  • Comparative Study
  • Journal Article
  • Validation Studies


Dive into the research topics of 'Validation of a Cumulative Hypersensitivity Index (CHI) for dentine hypersensitivity severity'. Together they form a unique fingerprint.

Cite this