Instrumentation of furcation with modified sonic sealer inserts A study on manikins (II)

We developed a sonic sealer tip with an ellipsoid diamond‐coated bud and contra‐angulated shafts to overcome problems resulting from furcation anatomy. In this study, extracted molars were instrumented in a dummy model without any replicated soft tissues using 3 different instrumentation methods (i) curettes, (ii) diamond‐coated sonic sealer tips with normal handle and (iii) diamond‐coated sonic sealer tips in 2 handles with varying power levels. 15 extracted upper and lower molars were instrumented using each of the 3 instrumentation types. Following debridement, loss of substanee and % of furcation area instrumented were assessed. In both upper and lower molars, significantly more surface area was instrumented in one instrumentation run with diamond‐coated tips than with curettes. Substance loss was greater with diamond‐coated lips than with hand instruments. In conclusion, an effective debridement of the furcation roof seems only possible with odontoplasty. Clinical evaluation of this approach to root debridement is needed.