Effects of ultrasonic scaling and hand-activated scaling on tactile sensitivity in dental hygiene students.
Purpose. This study was conducted to determine if tactile sensitivity varies in dental hygiene students who use the ultrasonic scaler, as compared to those who scale with hand-activated instruments.Methods. A two-group, randomized subjects, pretest-posttest design was carried out mid-semester for fi...
| Publicado en: | Journal of Dental Hygiene Vol. 79; no. 1; pp. 9 - 10 |
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| Autores principales: | , , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
American Dental Hygienists Association
Winter2005
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106646622&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106646622 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 1043254X 0CM jtl: Journal of Dental Hygiene issn: 1043254X maglogo: N pubinfo: dt: Winter2005 vid: 79 iid: 1 pid: 1936 pub: American Dental Hygienists Association place: Chicago, Illinois artinfo: ui: 106646622 106646622 2005094397 NLM16197758 106646622 ppf: 9 ppct: 1 formats: fmt: @attributes: type: P tig: atl: Effects of ultrasonic scaling and hand-activated scaling on tactile sensitivity in dental hygiene students. aug: au: Ryan DL Darby M Bauman D Tolle SL Naik D affil: Assistant Professor, University of Nebraska Medical Center College of Dentistry, Lincoln, Nebraska sug: subj: Sensation Students, Dental Hygiene Touch Ultrasonics Adverse Effects Ultrasonics Utilization Case Control Studies Dependent Variable Descriptive Statistics Fingers Funding Source Hypothesis Paired T-Tests Post Hoc Analysis Pretest-Posttest Design Repeated Measures Thumb Two-Way Analysis of Variance Vibration Evaluation Human ab: Purpose. This study was conducted to determine if tactile sensitivity varies in dental hygiene students who use the ultrasonic scaler, as compared to those who scale with hand-activated instruments.Methods. A two-group, randomized subjects, pretest-posttest design was carried out mid-semester for five weeks on 40 first-year dental hygiene students who met the inclusion criteria of this study and who agreed to participate. A convenience sample of 40 consenting, first-year dental hygiene students were randomly assigned to one of two groups (experimental or control). After establishing a baseline tactile sensitivity score with the Vibratory Sensory Analyzer (VSA), experimental group subjects used the ultrasonic scaler to remove 4cc's of artificial calculus from a typodont in a controlled, simulated clinical setting for 45 minutes, while each control subject manually scaled 4cc's of artificial calculus on a typodont in a controlled, simulated situation for 45 minutes. Immediately following exposure to either the ultrasonic scaler or hand-activated scaling instruments, tactile sensitivity scores were obtained using the VSA. Analysis of variance with one repeated measures factor was used to determine between group and within group differences on the pretest and posttest tactile sensitivity scores.Results. Results revealed that tactile sensitivity increased after a 45-minute scaling session with the ultrasonic scaler. Pretest to posttest changes in tactile sensitivity for the ultrasonic scaling group exhibited a much larger threshold as compared to those in the hand-activated scaling group, supporting a gain in students' level of sensitivity with stimulus (vibration). Tactile sensitivity decreased in those who used hand-activated scaling instruments. The thumb, index, and middle fingers of students in both groups showed similarities in tactile sensitivity, with the index finger being the most sensitive.Conclusion. Tactile sensitivity decreases with hand-activated scaling and increases with ultrasonic scaling over a 45-minute period. Short-term vibration exposure from the ultrasonic scaler is insufficient to negatively affect tactile sensitivity. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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