Journal of Prevention and Treatment for Stomatological Diseases ›› 2020, Vol. 28 ›› Issue (10): 646-650.doi: 10.12016/j.issn.2096-1456.2020.10.006

• Cinical Study • Previous Articles     Next Articles

Study of mandibular buccal gingival mucosa pain sensitivity

BAI Zhongcheng(),WANG Yayu,LI Xiaoling,LI Xiaoning,NIU Zhongying   

  1. Diagnosis & Treatment Center for Oral Disease, PLA Strategic Support Force Characteristic Medical Center, Beijing 100101, China
  • Received:2020-03-16 Revised:2020-06-07 Online:2020-10-20 Published:2020-09-01
  • Contact: Zhongcheng BAI E-mail:chengzhbai@163.com

Abstract:

Objective Through a pain study of buccal gingival mucosa sensitivity of the mandible, the corresponding sensitive area of pain was determined, which provided the basis for reducing the pain and discomfort of oral diagnosis and treatment. Methods 400 patients with mandibular tooth extraction in the outpatient department of stomatology were selected. During tooth extraction, articaine epinephrine injection was used for infiltration anesthesia. The injection needle size was 0.3 mm × 21 mm, and the injection site was about 5 mm away from the buccal gingival margin. The pain degree of the patients was recorded. The data were statistically analyzed using the modified International pain classification method. Results Among the 400 patients who underwent mandible extraction, 75% (300 patients) graded their pain from painless to moderate, and 25% (100 patients) reported moderate to severe and severe pain. Of those in the moderate to severe and severe groups, 50% and 42% reported pain in the central and lateral incisors, respectively, and 38% were in the canine group. When comparing the moderate to severe and the severe groups, 16% and 10% were in the bicuspid group, 16% and 12% and 16% were in the molar group, respectively . There were significant differences in the pain sensitivity of different teeth positions (χ2=54.203, P < 0.001). The proportion of moderate to severe and severe pain in the anterior teeth group was higher than it was in the posterior teeth group (χ2=55.555, P < 0.001). There were significant differences in the pain sensitivity of different ages (χ2=96.501, P=0.000), and there was a positive correlation between pain and age (r=0.465, P < 0.001). The proportion of women with at least a moderate degree of pain was higher than that of men (χ2=12.298, P=0.031). Conclusion The sensitivity of the buccal gingival mucosa to pain is different in different positions of the mandible. The sensitivity of the anterior gingiva is higher than that of the posterior gingiva. Age is positively correlated with the degree of pain. Further, compared with men, women are more sensitive to pain.

Key words: mandibular, buccal, anterior teeth, posterior teeth, gingiva mucosal, pain sensitivity, oral surgery, extraction of teeth

CLC Number: 

  • R78

Table 1

Summary of pain degree of buccal gingival mucosa in different tooth positions n(%)"

Tooth position Pain degree
Painless Mild Between mild and moderate Moderate Between moderate and severe Severe
Central incisor 0(0) 1(2) 5(10) 19(38) 20(40) 5(10)
Lateral incisor 1(2) 6(12) 7(14) 15(30) 15(30) 6(12)
Canine 1(2) 4(8) 10(20) 16(32) 15(30) 4(8)
First premolar 3(6) 11(22) 16(32) 12(24) 6(12) 2(4)
Second premolar 3(6) 9(18) 21(42) 12(24) 4(8) 1(2)
First molar 1(2) 7(14) 19(38) 15(30) 5(10) 3(6)
Second molar 0(0) 8(16) 16(32) 20(40) 5(10) 1(2)
Third molar 1(2) 10(20) 15(30) 16(32) 6(12) 2(4)

Table 2

Comparison of pain degree between different teeth n(%)"

Degree of pain Incisor Canine and first premolar Second premolar and first molar Second and third molar χ2 Test
χ2 P
Painless 1(1) 4(4) 4(4) 1(1) 54.203 <0.001
Mild 7(7) 15(15) 16(16) 18(18)
Between mild and moderate 12(12) 26(26) 40(40) 31(31)
Moderate 34(34) 28(28) 27(27) 36(36)
Between moderate and severe 35(35) 21(21) 9(9) 11(11)
Severe 11(11) 6(6) 4(4) 3(3)

Table 3

Comparison of the sensitivity of buccal gingival mucosa pain between anterior and posterior teeth n(%)"

Pain degree Anterior teeth Posterior teeth χ2 P
Painless 2(1.3) 8(3.2) 55.555 < 0.001
Mild 11(7.3) 45(18)
Between mild and moderate 22(14.7) 87(34.8)
Moderate 50(33.3) 75(30)
Between moderate and severe 50(33.3) 26(10.4)
Severe 15(10) 9(3.6)

Table 4

Rank sum test results of the relationship between pain and age"

Pain degree Age[year,MIQR)] χ2 P
Painless 22(4.75) 96.501 < 0.001
Mild 33(27.50)
Between mild and moderate 50(24.50)
Moderate 57(22.50)
Between moderate and severe 63.50(14)
Severe 63(17)

Table 5

Result of χ2 tests between pain and gender n(%)"

Pain degree Female Male χ2 P
Painless 1(0.5) 9(4.5) 12.298 0.031
Mild 23(11.4) 33(16.6)
Between mild and moderate 62(30.8) 47(23.6)
Moderate 65(32.3) 60(30.2)
Between moderate and severe 40(20.0) 36(18.1)
Severe 10(5.0) 14(7.0)
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