cedure ▁R ules ▁ 1 9 9 8 ▁Part ▁ 3 , ▁r ▁ 3 . 4 ( 2 )( a ) ▁ ▁References ▁ ▁Further ▁reading ▁▁▁▁▁ ▁Category : Un ited ▁Kingdom ▁company ▁case ▁law ▁Category : High ▁Court ▁of ▁Justice ▁cases ▁Category : 2 0 0 4 ▁in ▁case ▁law ▁Category : 2 0 0 4 ▁in ▁British ▁law <0x0A> </s> ▁In ▁dent istry , ▁deb ride ment ▁refers ▁to ▁the ▁removal ▁by ▁dent al ▁clean ing ▁of ▁accum ulations ▁of ▁pla que ▁and ▁calculus ▁( t art ar ) ▁in ▁order ▁to ▁maintain ▁dent al ▁health . ▁ ▁Description ▁ ▁D ental ▁deb ride ment ▁is ▁a ▁procedure ▁by ▁which ▁pla que ▁and ▁calculus ▁( t art ar ) ▁that ▁have ▁accum ulated ▁on ▁the ▁teeth ▁is ▁removed . ▁Deb ride ment ▁may ▁be ▁performed ▁in ▁the ▁process ▁of ▁personal ▁or ▁professional ▁teeth ▁clean ing . ▁ ▁Professional ▁deb ride ment ▁techniques ▁include ▁the ▁use ▁of ▁ul tr ason ic ▁instruments ▁( which ▁f ract ure ▁the ▁calculus , ▁thereby ▁facil it ating ▁its ▁removal ), ▁as ▁well ▁as ▁the ▁use ▁of ▁hand ▁tools , ▁including ▁period ont al ▁scal er ▁and ▁c ure tt es . ▁Deb ride ment ▁may ▁also ▁be ▁performed ▁using ▁sal ine ▁solution . ▁. ▁ ▁Pro ced ures ▁ ▁Period ont al ▁P ock ets ▁ ▁A ▁period ont al ▁pocket ▁is ▁formed ▁from ▁a ▁disease ▁process ; ▁it ▁is ▁defined ▁as ▁the ▁ap ical ▁extension ▁of ▁the ▁ging iva , ▁resulting ▁in ▁det