H J Breen
- Option-4 algorithm for automated disc probe: reduction in the variance of site-specific relative attachment level measurementsH J Breen
Clinical Practice, Chelmsford, Essex, UK
J Periodontol 68:456-66. 1997..The Option-4 algorithm produced an 80% reduction in the mean site-specific variance of RAL1/RAL2 (Y) and a 75% reduction in the median site-specific variance of RAL1/RAL2 (y = [(A - B)/A] x 100)...
- Site-specific attachment level change detected by physical probing in untreated chronic adult periodontitis: review of studies 1982-1997H J Breen
Department of Oral and Maxillofacial Medicine and Pathology, Guy s School of Medicine and Dentistry, London, UK
J Periodontol 70:312-28. 1999..The present paper aims to summarize the salient points from the key studies and to compare the results...
- Option-4 algorithm for Florida pocket depth probe: reduction in the variance of site-specific probeable crevice depth measurementsH J Breen
Statistics Unit, Public Health Laboratory Service, Colindale, London, UK
J Clin Periodontol 26:511-8. 1999..The option-4 algorithm produced a reduction of 75.6% in the mean site-specific variance of PCD1/PCD2 (Y) (Y=[(A-B)/A]X 100) and a 75% reduction in the median site-specific variance of PCD1/PCD2...