Sculean, A.; Schwarz, F.; Berakdar, M.; Romanos, G. E.; Brecx, M.; Willershausen, B.; Becker, J. (April 15, 2004). "Non-surgical periodontal treatment with a new ultrasonic device (Vector-ultrasonic system) or hand instruments". Journal of Clinical Periodontol. 31 (6): 428–433. doi:10.1111/j.1600-051X.2004.00496.x. PMID15142210.
Kim, S-Y; Kang, M-K; Kang, S-M; Kim, H-E (2018-03-13). "Effects of ultrasonic instrumentation on enamel surfaces with various defects". International Journal of Dental Hygiene. 16 (2): 219–224. doi:10.1111/idh.12339. ISSN1601-5029. PMID29532597. S2CID4921379.
Sculean, A.; Schwarz, F.; Berakdar, M.; Romanos, G. E.; Brecx, M.; Willershausen, B.; Becker, J. (April 15, 2004). "Non-surgical periodontal treatment with a new ultrasonic device (Vector-ultrasonic system) or hand instruments". Journal of Clinical Periodontol. 31 (6): 428–433. doi:10.1111/j.1600-051X.2004.00496.x. PMID15142210.
Kim, S-Y; Kang, M-K; Kang, S-M; Kim, H-E (2018-03-13). "Effects of ultrasonic instrumentation on enamel surfaces with various defects". International Journal of Dental Hygiene. 16 (2): 219–224. doi:10.1111/idh.12339. ISSN1601-5029. PMID29532597. S2CID4921379.
Kim, S-Y; Kang, M-K; Kang, S-M; Kim, H-E (2018-03-13). "Effects of ultrasonic instrumentation on enamel surfaces with various defects". International Journal of Dental Hygiene. 16 (2): 219–224. doi:10.1111/idh.12339. ISSN1601-5029. PMID29532597. S2CID4921379.
Kim, S-Y; Kang, M-K; Kang, S-M; Kim, H-E (2018-03-13). "Effects of ultrasonic instrumentation on enamel surfaces with various defects". International Journal of Dental Hygiene. 16 (2): 219–224. doi:10.1111/idh.12339. ISSN1601-5029. PMID29532597. S2CID4921379.