marginal irrigation

mar·gi·nal ir·ri·ga·tion

(mahrji-năl iri-gāshŭn)
Point of delivery of the irrigation angled at, or placed apically to, the gingival margin.
References in periodicals archive ?
Clinical and microbiological effects of subgingival and gingival marginal irrigation with chlorhexidine gluconate.
5) We note that the marginal irrigation, ceteris paribus, leads to an almost 8 percent increase in output of wheat and cotton.