Journal of the Korea Convergence Society (한국융합학회논문지)

Korea Convergence Society (한국융합학회)
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A Convergence Study on Changes in the Muscle Activity around the Neck of the Operator according to the Patient's Head Angle at the Direct Visual Inspection of the Maxillary Right-side Molar Palatal Surface

상악 우측 대구치 구개면의 직접 시진 시 환자 머리 각도에 따른 술자의 목 주변 근육활성도 변화의 융합적 연구

  • 이숙정 (신라대학교 치위생학과)
  • Received : 2018.09.16
  • Accepted : 2018.11.20
  • Published : 2018.11.28
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Abstract

This study aimed to investigate the association of the muscle activity around the neck of the operator(dental hygienists') according to the change in the patient's neck angle during a direct visual inspection on the maxillary right-side molar palatal surface. The operators were $4^{th}$ year dental hygiene students, who are future dentalhy gienists, having accurate understanding on and awareness of the location of the operation site, hand fixation, and how to use the tools. Data on the change in the muscle activity around the neck were collected by using surface electromyography and neck goniometer. SPSS statistics 20 was used for statistical analyses including Shapiro-wilk test and one-way ANOVA. As a result, the activities of the operator upper trapezius, cervical erector spinae, and levator scapulae muscles significantly decreased when the patient's head was angled compared to when it was not. For the angle of the operator head, the head bend significantly decreased when the patient's head was angled than when it was not. Based on the study results, it is expected that angling the patient's head when treating his or her teeth will decrease the excessive muscle activity around the neck of the operator, and will reduce muscle fatigue. Therefore, angling the head of the patient while treating his or her teeth is recommended. This suggests that muscle pain caused by repetitive actions in the wrong posture can be reduced.

본 연구는 환자 구강내의 상악 우측 대구치 구개면 직접시진 시 환자 머리 각도의 변화에 따른 술자(치과위생사)의 목 주변 근육 활성도의 관련성을 알아보고자 하였다. 술자는 해당부위의 위치와 손고정, 기구 사용에 대한 정확한 이해와 인지를 하고 있는 예비 치과위생사인 치위생학과 4학년 학생들로 표면 근전도, 목 각도계를 이용하여 목 주변 근육 활성도 변화의 자료를 수집하여 SPSS statistics 20을 이용해 Shapiro-wilk 검정, 일원배치 분산분석의 통계처리를 실시하였다. 연구결과 환자 머리의 각도를 주었을 때 각도를 주지 않은 자세 보다 술자의 위등세모근, 목세움근, 어깨올림근 근활성도가 모두 유의하게 감소하였다. 술자의 머리 각도는 환자 머리 각도를 준 자세가 머리 각도를 주지 않은 자세 보다 머리 굽힘은 유의하게 감소하였다. 결과적으로 치아 처치 시 환자 머리 각도의 변화를 주는 것은 술자의 목 주변 근육의 과도한 근활성도를 줄이고 근육 피로도를 낮출 것으로 예상됨으로 치아 처치 시 환자의 머리 각도 변화의 시행을 추천한다. 이는 잘못된 자세의 반복행위로 인한 근육의 통증도 줄일 수 있을 것이라 사료된다.

Keywords

Table 1. General Characteristics of study subjects

OHHGBW_2018_v9n11_209_t0001.png 이미지

Table 2. Differences of hygienist cervical flexion angle and model cervical right rotation angle during tooth treatment between hygienist cervical flexion position and model cervical right rotation position

OHHGBW_2018_v9n11_209_t0002.png 이미지

Table 3. Differences of upper trapezius and cervicalerector spinae muscle activation during tooth treatment between hygienist cervical flexion position and model cervical right rotation position

OHHGBW_2018_v9n11_209_t0003.png 이미지

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