Furcation involvement refers to the situation where the '''bone between the roots of multirooted teeth is destroyed''' due to [[periodontitis]] <font color="red">(Fig. 6.4)</font color>. The furcation sites of multirooted teeth should be examined with either a '''[[Periodontal Probe|periodontal probe]]''' or '''[[Dental Explorer|dental explorer]]'''. Furcation involvement is graded as follows:
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Furcation involvement refers to the situation where the '''bone between the roots of multirooted teeth is destroyed''' due to [[periodontitis]]. The furcation sites of multirooted teeth should be examined with either a '''[[Periodontal Probe|periodontal probe]]''' or '''[[Dental Explorer|dental explorer]]'''. Furcation involvement is graded as follows: