Comparison of onset and duration periods of 2% lidocaine associated with 1:100.000 adrenalin and of 4% articaine associated with 1:200.000 and 1:100.000 adrenalin on maxilar infiltration" / "Comparação dos períodos de latência e duração da lidocaina 2% associada a adrenalina 1:100.000 e da articaína 4% associada a adrenalina 1:200.000 e 1:100.000 na infiltração maxilar"

AUTOR(ES)

Carina Gisele Costa

DATA DE PUBLICAÇÃO

2003

RESUMO

SUMMARY Local anesthesias by maxillar infiltration with 2% lidocaine associated with 1:100.000 adrenalin (Lidocaina 100 ® by DFL), 4% articaine associated with 1:200.000 (Septanest 1:200.000 ® by Septodont) and 1:100.000 adrenalin (Septanest 1:100.000 ® by Septodont) were compared concerning to their onset and duration on dental pulp and gingiva. Twenty healthy volunteer patients, of both gender, between 18 and 50 years of age, received filling treatment of low complexity or fissure sealing on the occlusal surface of three superior posterior teeth of the same side. Each patient randomly received an ampoule (1,8ml) of each local anesthetic solution on three appointments. The onset and duration periods of local anesthesia on dental pulp were monitored with an electric pulptester (Vitality Scanner Model 2005 ® by Analytic Endodontics) and on buccal gingiva by the stimulus performed with the point of a probe. Kruskall-Wallis test identified statistic significant difference by the level of 5% between 2% lidocaine associated with 1:100.000 adrenalin when compared with both 4% articaine associated with 1:200.000 or 1:100.000 adrenalin for the following variants: onset and duration periods on dental pulp and duration period on gingiva. 2% lidocaine associated with 1:100.000 adrenalin presented the longest average for onset period on dental pulp and the minorest averages for duration periods on dental pulp and gingiva (respectively, 2,8, 39,2 and 42,2 minutes), when compared with 4% articaine associated with 1:200.000 (respectively, 1,6, 56,7 and 55,3 minutes) and 1:100.000 adrenalin (respectively, 1,4, 66,3 and 64,7 minutes). There was statistic significant difference between the two articaine solutions just for duration period on gingiva, whose longest average was that of 4% articaine associated with 1:100.000 adrenalin. There was no statistic significant difference between the groups for onset period on gingiva. It can be concluded that both articaine solutions present faster onset and longer duration than the lidocaine solution on pulpal anesthesia. For gingival onset there is no difference between the three tested solutions, however, for gingival duration, 4% articaine associated with 1:100.000 adrenalin presents the longest duration.

ASSUNTO(S)

maxilar infiltration dental pulp-anesthesia anestesia local polpa dentária-anestesia infiltração maxilar local anesthesia

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