不同超聲器械進(jìn)行齦下刮治對(duì)牙根面影響的實(shí)驗(yàn)研究
[Abstract]:Objective: With the progress and development of the ultrasonic technology, a variety of ultrasonic subgingival curettage devices have been developed in clinic, which can remove the dental plaque more efficiently and alleviate the discomfort of the patients. According to the research, the root surface covered by the tartar is treated by a magnetic-induced telescopic ultrasonic wave-scraping device, a piezoelectric ceramic-type ultrasonic wave-scraping device and a Vector ultrasonic system, the scraping time is recorded, and the surface of the root of the root of the root is observed by the scanning electron microscope. The effects of three different ultrasonic devices on the subgingival curettage and the effect on the root surface were evaluated. Methods: 34 teeth were collected for the removal of serious periodontal disease and the ultrasonic subgingival cleaning was completed, and the root surface was evaluated and recorded, and 48 subgingival root surfaces were randomly divided into 4 groups according to the set standard.), the EMS ultrasonic therapeutic equipment group (group B), the Vector ultrasound system group (group C) and the manual control group (group D), the subgingival curettage is carried out in the range of 5mm to 4mm in the middle part of the marker root, Stop. Record the curettage of each root surface and observing the condition of the root surface after the scraping and treatment under the stereomicroscope and the scanning electron microscope, The method comprises the following steps: each group randomly selects two root surface scanning electron microscope to observe the root surface condition, and the scraping region is divided into 9 parts on average, the center point of each part is selected to shoot an image under a 200-fold mirror, and the comparison and research are carried out according to the grading score of the roughness degree of the root surface. The time consumed by the subgingival curettage of each group was studied by a complete random design variance analysis, and the degree of roughness of each group was compared with the rank and the test of the complete random design. in the form of a knot Results: 1. The time of scraping and treatment: The longest (164. 75, 24. 19) seconds in the use of the Vector ultrasound system group in the removal of the dental calculus in the experimental area was significantly longer than that in the treatment group of the Odan (4.17, 5.18) seconds. At the time of use, it was also longer than the use of the EMS ultrasound treatment group (52.92 to 7.56) seconds and when the manual device control group was used (60.50) 12. 2 The analysis of variance showed that the difference between the groups was statistically significant (F = 196.439, P <0.001), and the difference between the groups was statistically significant (P <0. 05). 2. Comparison of root surface roughness: the difference of root surface roughness treated by four different devices is of statistical significance through complete random design rank and test (H = 49. 908, P <0. 001) The difference of the roughness of the root surface after treatment with the group of the Odan ultrasonic treatment instrument and the EMS ultrasonic treatment instrument group was not statistically significant (Z =-0.143, P> The difference of the roughness of the root surface after treatment with the Vector ultrasound system was of statistical significance (Z =-4.640, P <0.001), and the difference of the roughness of the root surface after treatment with the Vector ultrasound system was statistically significant (Z =-4.646, P <0).. 001) The difference of root surface roughness after treatment with the Vector ultrasound system and the manual control group was of statistical significance (Z =? 2.389, P <0. 05). 3. The scanning electron microscope observation: under the 100-fold observation, the surface of the root surface of the Odan ultrasonic therapeutic equipment group is observed to be uneven, the part of the site can be seen to have a stain layer residue, the root surface can be obviously scratched, and a small amount of teeth The quality of the bone is in the form of sheet-like exfoliation. The surface of the root of the root is not smooth under the lens of the EMS ultrasonic therapeutic equipment. See the residue of the irregular stained layer. The site of the root surface can be found with a small amount of scratch and no obvious teeth. The root surface is the most smooth after treatment with the Vector ultrasound system group, and a small amount of defiled layer is visible. The morphological results of the root surface are clear, and no obvious scratch or partial site is found. It can be seen that the root surface is smooth under the manual control group, and it is difficult to distinguish the results of the cementum and dentine, and it is difficult to distinguish the results of the cementum and dentine. obvious cementum Conclusion: 1. The time of subgingival curettage of the 1. Odin ultrasound device is shorter than that of the EMS piezoelectric ceramic ultrasonic device, the Vector ultrasonic system and the traditional hand-operated device, and the longest time of the use of the Vector ultrasound system, the efficiency of the subgingival curettage of the Odan ultrasonic device is the highest, and the Vector ultrasound system is advanced. The treatment efficiency of the subgingival curettage is low. The root surface after the subgingival curettage of the ultrasound device of the Odan ultrasonic device is rough, the scratch is obvious, the damage to the tissue of the root surface is the most, the EMS ultrasonic device is slightly superior to that of the Odan ultrasonic device and the Vector ultrasonic system, The root surface is smooth and flat and has no scratch. It is the right tooth in the 4 sets of devices.
【學(xué)位授予單位】:廣西醫(yī)科大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:R781.4
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