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Shanghai Journal of Stomatology    2008, 17 (4): 380-392.   Abstract （143）      PDF （547KB）（3018）       Knowledge map    Related Articles | Metrics

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Relationship between upper airway and cranial-facial growth patterns in adolescents with normal occlusion ZHANG Qi-feng, JIN Li, YAO Hua, LI Zhi-yong, HUANG Xu, WANG Hui-ming Shanghai Journal of Stomatology    2016, 25 (6): 702-706.   Abstract （242）   HTML （6）    PDF （814KB）（336）       Knowledge map    PURPOSE: To investigate the relationship between upper airway and cranial-facial growth pattern among teenagers with normal occlusion. METHODS: The study subjects consisted of 52 boys and 64 girls with normal occlusion. Their cephalometric radiographs were obtained. The sagittal diameter of upper airway was analyzed according to gender and different growth pattern. The relationship of upper airway diameter and cranial-facial formation was evaluated by stepwise regression analysis using SPSS 21.0 software package. RESULTS: There was no significant difference between male and female about upper airway diameter in teenagers, also no difference was found among different growth patterns. Regression analysis showed that upper airway was associated with some cranial-facial formation parameters. CONCLUSIONS: Although there is no significant difference in the upper airway diameters among different growth patterns, there is still certain association between cranial-facial formation and upper airway in adolescents. Reference | Related Articles | Metrics Cited: Baidu(1)

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Orofacial myofunctional therapy improves facial morphology of children with obstructive sleep apnea after adenotonsillectomy SHAN Hua-qing, WANG Yu-hui, YU Li-ming, LI Xiao-yan, LIU Yue -hua Shanghai Journal of Stomatology    2021, 30 (4): 389-393.   DOI: 10.19439/j.sjos.2021.04.010 Abstract （783）      PDF （790KB）（840）       Knowledge map    PURPOSE: This study investigated the effectiveness of orofacial myofunctional therapy(OMT) in improving facial morphology of children with obstructive sleep apnea (OSA) after adenotonsillectomy (AT). METHODS: Ten children aged from 4-7 years with persistent oral breathing for more than 1 month after adenotonsillectomy were chosen to receive orofacial myofunctional therapy. The patients were required to take photos before and after orofacial myofunctional therapy. In order to compare the soft changes before and after OMT treatment, twelve representative mark points were selected and used for proportion and angle measurements. Graphpad Prism 8 statistical software was used for statistical analysis, to compare the differences in facial morphology of patients before and after treatment. RESULTS: Compared with before OMT, a significant difference was found in the proportion of Sn-Ls/Sn-Stms(P=0.0002), Sn-Stms/Sn-Me'(P<0.05), as well as in the angle of Gs-Sn-Pos (P<0.05), nasolabial angle(P=0.0005), mentolabial angle (P=0.0026) after OMT treatment. CONCLUSIONS: Orofacial myofunctional therapy can be considered as an effective complementary treatment for OSA patients with oral breathing after adenotonsillectomy. Reference | Related Articles | Metrics

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Clinical study of the effect of fixed Twin-block on adolescent skeletal ClassⅡmalocclusion MA Xiao-qing, ZHAO Ning, XIANG Fei, ZHOU Man-li, QIAN Wen-hao Shanghai Journal of Stomatology    2021, 30 (4): 414-418.   DOI: 10.19439/j.sjos.2021.04.015 Abstract （409）      PDF （969KB）（377）       Knowledge map    PURPOSE: To evaluate the retention ability of fixed Twin-block appliance and its clinical effect on adolescent skeletal ClassⅡmalocclusion. METHODS: Twenty-six skeletal ClassⅡdivision 1 adolescents (M:12, F: 14; age:11~13 years, average: 11.8 years) were chosen and fixed Twin-block appliance was used to guide the mandibular protrusion for one year. Before and after treatment, cephalometric films were taken to observe the skeletal, dental and soft tissue changes. Graphpad Prism 6.0 software was used for Student's t test. RESULTS: There was no loosening or destruction of the appliance during the treatment and the profile of all cases was improved significantly. The indexes that showed significant difference(P<0.05) included the mandibular length and position (Co-Gn, SNB, ANB, Pog-VL, Pos-VL), the inclination and position of the maxillary incisors(U1-VL, U1-SN), the sagittal position of the mandibular dentition(L1-VL, L6-VL). The indexes that showed insignificant difference(P>0.05) included the mandibular plane(MP-SN), the length and position of the maxilla (SNA, A-VL), the vertical position of the maxillary incisor(U1-HL), the position of the maxillary posterior teeth(U6-VL, U6-HL), the mandibular incisor inclination(IMPA) and the vertical position of the mandibular dentition(L6-MP,L1-MP). CONCLUSIONS: Fixed Twin-block appliance can enhance the mandibular anchorage, effectively promote the mandibular growth and improve the facial profile. Reference | Related Articles | Metrics

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Shanghai Journal of Stomatology    2004, 13 (3): 203-206.   Abstract （298）      PDF （714KB）（829）       Knowledge map    Related Articles | Metrics

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Experts consensus on diagnostic and therapeutic strategies for malocclusions at early developing stage FANG Bing, JIN Zuo-lin, BAI Yu-xing, WANG Lin, ZHAO Zhi-he, LI Wei-ran, BAI Ding, HE Hong, LIU Yue-hua, HU Min, SONG Jin-lin, CHEN Li-li, CAO Yang, WU Ting-xi, LI Song, LI Huang, SHI Jie-jun, CHU Feng-ting Shanghai Journal of Stomatology    2021, 30 (5): 449-455.   DOI: 10.19439/j.sjos.2021.05.001 Abstract （1026）      PDF （861KB）（1441）       Knowledge map    Early orthodontic intervention remains a controversial notion in current dental care regime. Whilst early orthodontic treatment for children is the province for orthodontic specialists, a growing number of general practitioners, who may not possess sufficient specialty knowledge, are also involved, raising the concerns about the propriety and quality of their treatment modalities. However, orofacial development of children and adolescents is in a very complicated environment. Comprehensive theoretical knowledge and a great wealth of practical experience are required to ensure the final treatment effect. The possible complications should be kept under control and fully informed to patients and their parents. In order to unify and standardize early orthodontic treatment protocol and help to promote healthy and orderly development of early orthodontic treatment, this consensus summarized the practical experience of orthodontic experts from many famous colleges and affiliated hospitals for clinical reference. Reference | Related Articles | Metrics

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Application of one-piece implant-supported detachable telescope retained fixed bridge in edentulous cases WANG Qiao-na, LI Ming, QIU Jing, ZHANG Xiao-zhen, WU Zi-qiang, CHEN Dong-lei, XU Jing-ming, TANG Chun-bo Shanghai Journal of Stomatology    2015, 24 (6): 702-707.   Abstract （368）      PDF （1364KB）（706）       Knowledge map    PURPOSE To evaluate the clinical effectiveness of one-piece implant-supported detachable telescopic fixed bridge in edentulous patients. METHODS Seventeen patients were treated with one-piece implant-supported detachable telescopic fixed bridge. A total of 18 prostheses were fabricated with 8 in the upper jaws and 10 in the lower jaws.Fixed bridges retained by telescopic crowns were used as final prostheses, with milling titanium or all-ceramic abutments as primary crowns, gold-electroforming crowns as secondary crowns. Surveys about clinical and radiographic examination, satisfaction and prosthetic complications were conducted after 3 months,1 year, 2 years, 3 years after final rehabilitation. Data analysis was performed using SPSS 17.0 software package.RESULTS Radiography showed stable bone levels for all implants except 2 implants, which were observed slight marginal bone resorption. The results of one-way ANOVA showed that no significant difference in modified plaque index or modified sulcus blooding index was found during the follow-up period (P>0.05). The probing attachment level deteriorated by 1.5 mm during the first 3 years (P<0.05). Eighteen restoration provided sufficient fixation and stability. Two porcelain fractures occured but had no influence on restoration. The patients were highly satisfied with the outcomes. The frequency of prosthetic maintenance per patient per year was 0.11.CONCLUSIONS One-piece implant-supported detachable telescopic fixed bridge is an effective method with satisfactory long-term aesthetic and stable outcomes in edentulous patients. Reference | Related Articles | Metrics

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The effect of human PBMC on the growth of oral squamous cell carcinoma cell LIU Qi, SUN Zu-jun Shanghai Journal of Stomatology    2016, 25 (2): 146-149.   Abstract （276）   HTML （0）    PDF （865KB）（249）       Knowledge map    PURPOSE: To explore the effect and mechanism of activated peripheral blood mononuclear cell (PBM) on the growth and apoptosis of oral squamous carcinoma cells in vitro. METHODS: ELISA, RT-PCR, MTT and flow cytometry were used to detect cytokines secretion and oral squamous carcinoma cell growth and apoptosis affected by activated PBMCs with PHA. The data was analyzed using SPSS17.0 software pakage. RESULTS: The cytokines secretion, mRNA expression of granzyme B and perforin, inhibition of growth and induction of apoptosis of oral squamous carcinoma cells treated by the activated PBMCs with PHA were significantly higher than the control groups (P<0.05). CONCLUSIONS: The human PBMC can be activated effectively with the stimulations of PHA, which can significantly inhibit growth and induce apoptosis of oral squamous carcinoma cells in vitro. Reference | Related Articles | Metrics

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Shanghai Journal of Stomatology    2010, 19 (3): 247-249.   Abstract （111）      PDF （634KB）（620）       Knowledge map    Related Articles | Metrics

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Assessment of pulpotomy in cariously exposed permanent teeth DONG Yan, HU Shu-li, SUN Yuan-yuan, ZHANG Hong-yan Shanghai Journal of Stomatology    2017, 26 (4): 425-428.   DOI: 10.19439/j.sjos.2017.04.015 Abstract （541）      PDF （2731KB）（876）       Knowledge map    To observe the clinical effect of pulpotomy for cariously exposed permanent teeth with closed apices and provide guidance for clinical application. METHODS: Sixty-two cariously exposed permanent teeth with closed apices and vital pulps were included. Preoperative pulpal and periapical diagnosis was established. The teeth were divided into two groups, the experimental group was treated with pulpotomy(32 cases), and the control group was treated with one-visit root canal therapy (one-visit RCT) (30 cases). Clinical and radiographic evaluation was completed at 1 month, 3 months, 6 months, 12 months postoperatively. Statistical analysis was performed using SPSS 18.0 software package. RESULTS: After 1 year, the success rate of pulpotomy was 93.75%, and the success rate of root canal therapy was 93.10%. There was no significant difference between pulpotomy and root canal therapy( χ2=0.010,P=0.665). CONCLUSIONS: The advantages of pulpotomy are less invasive and less tooth destruction. It is a successful treatment option for cariously exposed pulps in mature permanent teeth. Reference | Related Articles | Metrics

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Clinical effect of digital impression combined with all-ceramic denture on restoration of 60 patients with dental defects CHEN Li-rong, LIANG Xue-jin, YANG Feng-ying, LUO Hao Shanghai Journal of Stomatology    2022, 31 (3): 313-317.   DOI: 10.19439/j.sjos.2022.03.018 Abstract （304）      PDF （760KB）（491）       Knowledge map    PURPOSE: To analyze the clinical effect of digital impression combined with all-ceramic denture restoration on patients with dental defects. METHODS: A study was conducted on 120 patients with dental defects admitted to Dongfeng Stomatological Hospital from June 2018 to June 2020. The two groups of patients were randomly divided into digital imprinting modules and silicone rubber imprinting modules using a random number table method. There were 60 cases in each group. The silicone rubber imprint module used traditional silicone impression combined with all-ceramic denture restoration, while the digital imprint module used digital impression combined with all-ceramic denture restoration.The clinical efficacy of the two groups was observed. Gingival index (GI), periodontal index (PI) before dental restoration, during dental restoration and 6 monthes after dental restoration were compared. The adjacent surface contact conditions, occlusion and adverse reactions of the two groups were compared. SPSS 22.0 software package was used for statistical analysis. RESULTS: The two groups of patients selected grade A and grade B for the evaluation of the restoration when the restoration was completed. The number of patients who chose grade A for the digital imprint module was more than that of the silicone rubber imprint module,but there was no significant difference(P>0.05). Six months after the tooth was worn, GI and PI indexes of the two groups of patients increased. GI and PI indexes of the silicone rubber stamping module were significantly higher than those of the digital stamping module(P<0.05). When dental restoration was completed and 6 months after the tooth was replaced, the pass rate of contact between the adjacent surfaces of the imprinting module patients was significantly higher than that of the silicone rubber imprinting module(P<0.05). When dental restoration was completed, the occlusion of the digital imprinting module patients was significantly better than that of the silicone rubber imprinting module(P<0.05). Six months after wearing the denture, there was no significant difference in occlusion between the two groups of patients(P>0.05). When dental models of the two groups of patients were taken, the incidence of adverse reactions in patients with digital imprints was significantly lower than that of silicone rubber imprints(P<0.05). CONCLUSIONS: The use of digital impressions combined with all-ceramic restorations to repair patients with dental defects can effectively improve the treatment effect, improve prognostic GI and PI indexes of the patients, increase the pass rate of the adjacent surface contact and occlusion of the tooth, and reduce the process of dental restoration. The incidence of adverse reactions are minimal, with good prognostic effects. It is worthy of clinical application. Reference | Related Articles | Metrics

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Shanghai Journal of Stomatology    2011, 20 (2): 152-158.   Abstract （118）      PDF （2066KB）（499）       Knowledge map    Related Articles | Metrics

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Clinical efficacy of the combination of miniscrew with clear aligner in controlling the roller coaster effect MA Xiao-qing, XIANG Fei, FAN Ming-yue, SONG Yi, WANG Xiao-hui, ZHANG Ling, QIAN Wen-hao Shanghai Journal of Stomatology    2022, 31 (2): 193-197.   DOI: 10.19439/j.sjos.2022.02.015 Abstract （663）      PDF （1173KB）（664）       Knowledge map    PURPOSE: To investigate the clinical efficacy of miniscrew in controlling the roller coaster effect in long-distance space closure with clear aligner. METHODS: Sixteen adult patients with bimaxillary protrusion were selected. All cases were treated with clear aligner and their four first premolars were extracted. G6 was designed in all cases. In the experimental group, four miniscrews were inserted at the beginning of treatment to control the teeth in three dimensions; while in the control group, the miniscrews were not applied until obvious roller coaster effect appeared. Paired t test was used to analyze the data with Graphpad Prism 6.0 software package. RESULTS: All the extraction space was closed successfully and the lateral profile was improved significantly. The torque of the upper incisor was under well control and no roller coaster effect happened in the experimental group; while in the control group, the lingual inclination of the upper incisors and open bite of the posterior teeth developed(P<0.05). After the miniscrews intrusion of the upper anterior teeth, the occlusion relationship improved significantly. CONCLUSIONS: Miniscrews effectively prevents and eliminates the roller coaster effect in the process of long-distance space closure with clear aligner. Reference | Related Articles | Metrics

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Shanghai Journal of Stomatology    2005, 14 (4): 439-440.   Abstract （419）      PDF （381KB）（229）       Knowledge map    Related Articles | Metrics

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Effectiveness of 3 different methods in prevention of dental caries in permanent teeth among children TANG Li-hong1, SHI Le1, YUAN Shuang1, LV Jin1, LU Hai-xia2 Shanghai Journal of Stomatology    2014, 23 (6): 736-739.   Abstract （250）   HTML （11）    PDF （537KB）（732）       Knowledge map    PURPOSE: To compare the effectiveness of fluoride vanish, fluoride foam, pit and fissure sealant with fluoride in prevention of dental caries, and investigate appropriate approach to prevent dental caries at schools. METHODS: A randomized controlled clinical trial with 4 parallel groups was conducted. Totally 1016 children from 4 schools and 33 classes with a mean age of 7 to 8 years were included. They were randomly allocated into 4 groups: ① fluoride vanish, semi-annual application; ② fluoride foam, semi-annual application; ③ resin sealant, single placement; and ④ placebo control with oral hygiene instruction. Follow-up examinations were conducted after 2 years to monitor dental caries increment of first molars among these children. Data analysis was performed using SPSS 18.0 software package. RESULTS: Two years later, 977 children (96.2%) were examined. The results of multiple factor ANCOVA showed that fluoride vanish and resin sealant had significantly lower mean dental caries increment on tooth surface compared with control group (P<0.05). No significant difference of mean dental caries increment on tooth surface was found between fluoride foam and control group (P>0.05). CONCLUSIONS: The placement of resin sealant with fluoride and annual application of fluoride protector are effective in prevention of dental caries in permanent teeth of children. Reference | Related Articles | Metrics

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Shanghai Journal of Stomatology    2003, 12 (3): 218-220.   Abstract （273）      PDF （4426KB）（681）       Knowledge map    Related Articles | Metrics

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Shanghai Journal of Stomatology    2007, 16 (3): 236-238.   Abstract （616）      PDF （606KB）（1086）       Knowledge map    Related Articles | Metrics

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The orthodontic therapeutic principles for malocclusions concurring with temporomandibular joint disorders SHEN Gang Shanghai Journal of Stomatology    2021, 30 (4): 337-343.   DOI: 10.19439/j.sjos.2021.04.001 Abstract （776）      PDF （2978KB）（875）       Knowledge map    The biological nature of temporomandibular joint (TMJ) featuring adaptive remodeling allows for TMJ structural changes in response to external stimuli, including alterations in occlusion and in mandibular posture. Correlative susceptibility exists between malocclusions and TMJ disorders (TMD), evidenced by high incidence of TMD coinciding with skeletal originated malocclusion with facial prognathsim (Angle Class I skeletal II high angle). Clinical manifestations include markedly retruded mandible together with increased overjet, or mandibular transverse deviation, due to condylar pathological resorption. It is critically imperative to execute differential diagnosis between the routine malocclusions and those infringed with TMD. The prime stipulations governing the orthodontic procedures include the patient's notification of the existential TMD conditions prior to any orthodontic interventions, close inspections of TMD developments during the treatment, and a specially designed retention protocol aftermath. For the cases where severe overjet and mandibular displacement occur as a result of TMD, some specific orthopedic modalities can be implemented to improve the occlusion by restoring the shifted mandible. TMD conditions are also expected to be relieved with mandibular repositioning, which encourages new bone formation in the degraded condyles. The newly developed clear version of orthopedic appliances, namely, S8-SGTB, S8-SGHB, S9 and S10 are of promising efficacy in treating this category of patients. Reference | Related Articles | Metrics

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Shanghai Journal of Stomatology    2004, 13 (6): 561-563.   Abstract （393）      PDF （581KB）（965）       Knowledge map    Related Articles | Metrics

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A comparative study on the effect of glass fiber post and metal post in restoration of anterior tooth defect WU Xue-ying, YE Ye, ZHONG Qun Shanghai Journal of Stomatology    2020, 29 (3): 325-328.   DOI: 10.19439/j.sjos.2020.03.019 Abstract （417）      PDF （755KB）（717）       Knowledge map    PURPOSE: To analyze the effect and long-term success rate of using glass fiber post or metal post in restoration of anterior tooth defect. METHODS: One hundred and fifty cases with anterior tooth defects were chosen after root canal therapy in our hospital. According to different material being chosen, the patients were divided into fiber post group and metal post group with 75 cases in each group. Local gingival sulcus fluid (GCF) levels and alkaline phosphatase (ALP) level in gingival sulcus liquid were measured and compared 4 weeks, 6 months, 1 year, 2 years and 3 years after restoration. Restoration integrity, edge fitness and color matching of two groups were compared after follow-up for 3 years. The data were analyzed with SPSS 19.0 software package. RESULTS: Four weeks, 6 months, and 1 year after restoration, local GCF, ALP levels significantly elevated in both groups. The fiber post group showed more significant elevated levels of GCF and ALP than the metal post group (P<0.05). After 2 and 3 years, the difference between the two groups was not significant. The gingival color matching degrees were significantly better in the glass fiber post group after 1 year compared with that in the metal post group(P<0.05). The success rate of metal post group was significantly higher than that of fiber post group 3 years after restoration(P<0.05). CONCLUSIONS: Fiber post and metal post both have satisfactory restoration result for tooth defect in anterior teeth area. However, the use of precious metal alloy post may reduce the possibility of microleakage between tooth-prosthesis surfaces. Reference | Related Articles | Metrics