Objective: To evaluate periodontal status of 380 pregnant women and its related factors. Methods: 380 healthy pregnant women aged 20 to 43 at 10-35 weeks of gestation were enrolled and received a questionnaire and a periodontal examination, in order to compare and analyse the effects of different ages, gestational weeks and educational levels on periodontal condition. Results: The prevalence of periodontal disease of the subjects was 87. 1％. In first (10-15 weeks), second (16-27 weeks) and third (28-35 weeks) trimester PD (mm) was 2. 48 ± 0. 54, 2. 60 ± 0. 54 and 2. 71 ± 0. 48 respectively (P ＜ 0. 05) ; the percentage of PD≥4 mm in 2 or more sites were 76. 5％, 84. 1％ and 93. 5％ respectively (P ＜ 0. 05) ; GI and BI did not show significant differences among of the 3 groups trimester stages (P＞ 0. 05) ; PD in maternal age (year) 20-27, 28-35 and 36-43 years was2. 39 ± 0. 51, 2. 61 ± 0. 53 and 2. 61 ± 0. 56 respectively (P ＜ 0. 05) . A significantly positive linear trend was observed between age and GI (P ＜ 0. 05) or PD (P ＜ 0. 05), but without significant correlation between age and BI. Significant correlation was found between pregnant weeks and PD (P ＜ 0. 05), but without correlation between pregnant weeks and GI (P＞ 0. 05) or BI (P＞ 0. 05) .Conclusion: The prevalence of periodontal disease during pregnancy is high. Meanwhile, the periodontal inflammation is increasing worse with the increase of gestational weeks and maternal age.

Objective:To explore the method and effect in repairing the defect of fingertip with lateral V-Y advancement flap with one side palmar proper digital artery.Methods:From October 2014 to May 2019, Department of the Hand and Foot Surgery, the Third People's Hospital of Jining(Yanzhou District People's Hospital of Jining City) treated 34 digits of 27 cases with a defect area of 0.5 cm×0.5 cm-1.5 cm×2.0 cm. A lateral V-Y advancement flap with one side palmar proper artery was used to repair the fingertip defect, and the flap size was 1.7 cm×1.0 cm-4.5 cm×1.5 cm. Twenty cases entered long-time follow-up after operation, with 7 cases lost in follow-up, 16 cases were reviewed at outpatient and 4 by WeChat.Results:All the flaps of 34 digits of 27 cases survived. The color of the flaps were close to or completely normal to the surrounding tissue, the texture was soft and the appearance was good. The TPD of the flap was 2.0-6.0 mm. The follow-up time ranged from 22 to 77 months, with an average of 31.45 months. The flexion and extension function of the digits were good with total range of motion(ROM) of the thumb was > 90 °; total active motion (TAM) of the fingers was 260 °-200 °. The fingers of 1 case had hook nail or hook finger deformity. According to the Evaluation Trial Standard of Upper Limb Partial Function of Hand Surgery of Chinese Medical Association, 18 cases were excellent and 2 cases were good.Conclusion:The lateral V-Y advancement flap with one side palmar proper digital artery is easy to operate. The blood supply of the flap is reliable, with good sensation. The flexion and extension of the digits are good, and the appearance and texture of the flap are good.