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  1. Article: [Preliminary evaluation of chin symmetry with three dimentional soft tissue spatial angle wireframe template].

    Lyu, Liang / Zhang, Mingjin / Wen, Aonan / Zhao, Yijiao / Wang, Yong / Li, Jing / Yang, Gengchen / Liu, Dawei

    Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences

    2024  Volume 56, Issue 1, Page(s) 106–110

    Abstract: ... for evaluating chin region asymmetry at the soft tissue level and to compare it with the traditional mirror ... with clinical chin region asymmetry diagnosis at the Department of Orthodontics of Peking University Hospital ... the response rate of chin region asymmetry was eva-luated by the outcomes of the mirror-overlap analysis and ...

    Abstract Objective: To develop an efficient and robust method based on three dimensional facial landmarks for evaluating chin region asymmetry at the soft tissue level and to compare it with the traditional mirror-overlap analysis method in order to test its availability.
    Methods: Standard symmetrical face was used for mental tubercle coordinate transformation so as to filter soft tissue three dimensional spatial angle and construct corresponding three dimensional spatial angle wireframe template. Ten patients aged 12-32 years with clinical chin region asymmetry diagnosis at the Department of Orthodontics of Peking University Hospital of Stomatology from November 2020 to November 2021 were randomly selected. Three dimensional soft tissue face scan data of the patients were collected by three dimensional face scanner and the landmark points were automatically determined by the Meshmonk non-rigid registration algorithm program, and in this way, the asymmetric three dimensional spatial angle wireframe template and corresponding spatial angle parameters were generated. Mirror-overlap analysis of face scan data was also performed in Geomagic Studio 2015 software and deviation color maps were generated. This study took mirror-overlap analysis as the gold standard method, the response rate of chin region asymmetry was eva-luated by the outcomes of the mirror-overlap analysis and three dimensional spatial angle wireframe template analysis.
    Results: Nine three dimensional spatial angle indicators were selected through coordinate transformation, and the response rate was calculated using mirror-overlap analysis as the gold standard method. Among these ten selected patients, the response rate of the total chin region asymmetry was 90% (9/10). Using the deviation value of mirror-overlap analysis as a reference, the response rate of chin region asymmetry in the
    Conclusion: The three dimensional soft tissue spatial angle wireframe template proposed in this study has some feasibility in evaluating chin region asymmetry at the soft tissue level, and its ability to recognize asymmetry separately in the three dimensional direction is better than the mirror-overlap analysis method, and the indicators recognition rate still needs to be further improved.
    MeSH term(s) Humans ; Chin ; Face/diagnostic imaging ; Facial Asymmetry/diagnostic imaging ; Imaging, Three-Dimensional/methods ; Software ; Cephalometry/methods
    Language Chinese
    Publishing date 2024-02-06
    Publishing country China
    Document type English Abstract ; Journal Article
    ZDB-ID 2452593-5
    ISSN 1671-167X
    ISSN 1671-167X
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  2. Article ; Online: Sialoblastoma in chin and management of treatment.

    Wang, Qian / Ma, Sainan / Chen, Huanhuan / Yang, Mingli / Cai, Weisong

    International journal of pediatric otorhinolaryngology

    2018  Volume 109, Page(s) 168–173

    Abstract: Objective: Sialoblastoma is a rare salivary gland tumor mainly located in parotid. In this article, we aimed to review the clinical manifestations and treatments of sialoblastoma, especially to provide effective chemotherapy regimens to instruct ... ...

    Abstract Objective: Sialoblastoma is a rare salivary gland tumor mainly located in parotid. In this article, we aimed to review the clinical manifestations and treatments of sialoblastoma, especially to provide effective chemotherapy regimens to instruct internal medicine therapy for unresectable or recurrent tumors.
    Method: We reported a 1-year old girl who presented a left-sided firm facial mass and subsequently diagnosed as sialoblastoma. Afterwards, we reviewed and analyzed relevant literatures.
    Results: Sixty-four cases of pediatric sialoblastoma were reviewed. Of them, surgical excision was the basic treatment, 17 cases received chemotherapy, and 15 cases got good response. Lung metastasis was reported in six patients, all of whom had good response to chemotherapy.
    Conclusion: Chemotherapy may play an important role in residual, extensive, metastatic and relapsed cases. In addition, lung metastasis was unlikely to exert a significant effect on prognosis.
    MeSH term(s) Antineoplastic Combined Chemotherapy Protocols/therapeutic use ; Chin/pathology ; Fatal Outcome ; Female ; Humans ; Infant ; Neoplasm Recurrence, Local ; Prognosis ; Salivary Gland Neoplasms/drug therapy ; Salivary Gland Neoplasms/pathology ; Salivary Glands/pathology ; Tomography, X-Ray Computed
    Language English
    Publishing date 2018-04-11
    Publishing country Ireland
    Document type Case Reports ; Journal Article ; Review
    ZDB-ID 754501-0
    ISSN 1872-8464 ; 0165-5876
    ISSN (online) 1872-8464
    ISSN 0165-5876
    DOI 10.1016/j.ijporl.2018.03.023
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  3. Article ; Online: The Application of Crown-Chin Length to Crown-Rump Length Ratio in Predicting Fetal Skeletal Dysplasia at First Trimester.

    Li, Yingsi / Zhou, Hang / Yang, Xin / Li, Dongzhi / Can, Liao

    Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine

    2022  Volume 41, Issue 10, Page(s) 2497–2504

    Abstract: Objective: To examine the feasibility of using crown-chin length (CCL) to crown-rump length (CRL ...

    Abstract Objective: To examine the feasibility of using crown-chin length (CCL) to crown-rump length (CRL) ratio in screening for skeletal dysplasia in the first trimester.
    Methods: Four hundred and eighteen singleton pregnant women were recruited and the ratio of CCL to CRL was calculated according to gestational age. Fetuses with skeletal dysplasia were collected from database in the last 10 years. The CCL/CRL ratios were then calculated and the unpaired Student's t-test was to determine the significance of differences between normal fetuses and fetuses with skeletal dysplasia. Receiver operating characteristic curve was used to show the clinical sensitivity and specificity.
    Results: In 418 normal fetuses, CCL increased linearly with gestation from a mean of 20 mm at 11
    Conclusions: Increased fetal CCL/CRL ratio at 11-14 weeks' gestation is associated with an increased risk of skeletal dysplasia and may be useful in first-trimester screening for this condition.
    MeSH term(s) Crown-Rump Length ; Female ; Fetus ; Gestational Age ; Humans ; Pregnancy ; Pregnancy Trimester, First ; Ultrasonography, Prenatal
    Language English
    Publishing date 2022-01-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 604829-8
    ISSN 1550-9613 ; 0278-4297
    ISSN (online) 1550-9613
    ISSN 0278-4297
    DOI 10.1002/jum.15936
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  4. Article ; Online: Hair-Bearing Expanded Scalp Flap for Total Beard Reconstruction in Patients With Chin and Submental Postburn Scars.

    Ding, Jianke / Chu, Feifei / Yu, Zhou / Liu, Chaohua / Yang, Qing / Tang, Yinke / Ma, Xianjie

    The Journal of craniofacial surgery

    2022  Volume 34, Issue 2, Page(s) 731–734

    Abstract: ... from edge necrosis at distal end of the flap and healed after daily dressing change. Chin and submental ...

    Abstract Background: Loss of beard in adult male caused by severe burn may cause cosmetic and psychological problems for these patients. Reconstruction of the beard with hair-bearing skin flaps in similar color and texture of the surrounding tissues remains a challenge.
    Methods: Eight male patients suffered from submental postburn scar and beard loss were treated by using the hair-bearing expanded scalp flap. A 1000 mL nephroid tissue expander was first implanted under the frontal and mid scalp. After a 3 to 4-month tissue expansion, the expanded hair-bearing scalp flap based on bilateral superficial temporal vessels were raised and transferred for beard reconstruction, and the cutaneous pedicles were curled into tubes. Delay and division of the pedicles were performed 3 to 4 weeks after flap transfer.
    Results: Eight male patients with postburn scar and beard loss were successfully treated with no major complication. One patient suffered from edge necrosis at distal end of the flap and healed after daily dressing change. Chin and submental areas were repaired by expanded scalp flap and total beard was reconstructed at the same time. All donor sites were closed directly without skin grafting.
    Conclusions: The modified expanded bipedicled scalp flap provides an easy and reliable way for total beard reconstruction and large-scale submental scars repairment.
    MeSH term(s) Adult ; Humans ; Male ; Cicatrix/surgery ; Scalp/surgery ; Chin ; Surgical Flaps/transplantation ; Hair
    Language English
    Publishing date 2022-09-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1159501-2
    ISSN 1536-3732 ; 1049-2275
    ISSN (online) 1536-3732
    ISSN 1049-2275
    DOI 10.1097/SCS.0000000000008944
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  5. Article ; Online: One-Half Wedge Osteotomy Genioplasty for Correction of Chin Deviation Based on Three-Dimensional Computed Tomography Measurements and Simulation.

    Jiang, Yerong / Yang, Bin / Yang, Fan / Li, Binghang / Ma, Hengyuan / Huang, Qinghua / Sun, Tiecheng / Lei, Bowen / Shuang, Kun

    The Journal of craniofacial surgery

    2021  Volume 32, Issue 4, Page(s) 1496–1499

    Abstract: Abstract: Conventional operations correcting chin deviations mainly rely on the observation and ... simulation. This study evaluated the clinical effect of chin deviation correction with the 1/2WOG method ... were evaluated. The chin deviation angle and distance, and partial chin deformity were measured ...

    Abstract Abstract: Conventional operations correcting chin deviations mainly rely on the observation and experience of the surgeons during the operation. We have created a new surgical method, one-half wedge osteotomy genioplasty (1/2WOG), that combines three-dimensional computed tomography measurements and simulation. This study evaluated the clinical effect of chin deviation correction with the 1/2WOG method. A total of 38 patients (15 men and 23 women) who underwent 1/2WOG between October 2019 and October 2014 were evaluated. The chin deviation angle and distance, and partial chin deformity were measured preoperatively using three-dimensional computed tomography data. Precise calculations and osteotomy lines were achieved by preoperative simulation. All patients underwent the same surgery by the same surgical team. The clinical effect of 1/2WOG was evaluated according to the preoperative and postoperative data and patient satisfaction. All 38 patients achieved satisfactory aesthetic results without major complications such as chin nerve injury or bone nonunion. Eight patients occured numbness of the lower lip after surgery; at 6-month follow-up, the numbness was reduced in 2 patients and disappeared in 6 patients. Compared with preoperative data, the chin deviation angle, chin deviation distance, and gonion-menton difference were significantly reduced postoperatively. During the 12-month follow-up, the patient satisfaction rate reached 90%. We conclude that chin deviation can be improved by 1/2WOG. The combination of digital technology measurements and simulation can increase the accuracy of the osteotomy line design, thus reducing surgical trauma and increasing patient satisfaction, which is worthy of clinical promotion.
    MeSH term(s) Chin/diagnostic imaging ; Chin/surgery ; Esthetics, Dental ; Female ; Genioplasty ; Humans ; Male ; Mandible ; Osteotomy ; Tomography, X-Ray Computed
    Language English
    Publishing date 2021-01-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1159501-2
    ISSN 1536-3732 ; 1049-2275
    ISSN (online) 1536-3732
    ISSN 1049-2275
    DOI 10.1097/SCS.0000000000007431
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  6. Article ; Online: Super-selective intra-arterial dissolution therapy for lingual artery occlusion resulting due to the use of hyaluronic acid for chin augmentation: The first reported case.

    Yang, Yi / Zhou, Guiwen / Chen, Kang / Fu, Qiang / Lai, Linying / Chen, Minliang

    Journal of cosmetic dermatology

    2022  Volume 21, Issue 8, Page(s) 3358–3361

    Abstract: ... to the filling of hyaluronic acid (HA) in the chin have been previously reported. However, clinical evidence ... to chin augmentation and their treatment to provide a deeper understanding of the use and side effects ...

    Abstract As a consequence of the current trend of performing minimally invasive surgery, the use of injectable fillers has progressively increased in aesthetic surgery. Vascular complications resulting due to the filling of hyaluronic acid (HA) in the chin have been previously reported. However, clinical evidence regarding the results of treatment of lingual artery occlusion with super-selective intra-arterial dissolution is lacking. Herein, we reported a case of lingual artery occlusion resulting due to HA filling for which tongue arteriography and catheter-directed dissolution were implemented via femoral artery intubation for the first time in the literature. The aim of this paper was to discuss the rare complications arising due to chin augmentation and their treatment to provide a deeper understanding of the use and side effects of HA in this procedure.
    MeSH term(s) Arterial Occlusive Diseases/chemically induced ; Arterial Occlusive Diseases/therapy ; Arteries ; Chin ; Cosmetic Techniques/adverse effects ; Dermal Fillers/adverse effects ; Humans ; Hyaluronic Acid/adverse effects ; Solubility ; Tongue
    Chemical Substances Dermal Fillers ; Hyaluronic Acid (9004-61-9)
    Language English
    Publishing date 2022-06-04
    Publishing country England
    Document type Case Reports ; Journal Article
    ZDB-ID 2280551-5
    ISSN 1473-2165 ; 1473-2130
    ISSN (online) 1473-2165
    ISSN 1473-2130
    DOI 10.1111/jocd.15093
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  7. Article ; Online: Different Transfer Forms of the Expanded Forehead Flap Pedicled With Superficial Temporal Vessels to Treat Chin and Submental Scar Deformities.

    Cao, Zilong / Liu, Liqiang / Fan, Jincai / Tian, Jia / Gan, Cheng / Jiao, Hu / Yang, Zengjie

    The Journal of craniofacial surgery

    2021  Volume 33, Issue 4, Page(s) 1066–1070

    Abstract: Background: The chin and submental regions are located at the junction of the face and neck ... a surgical treatment for chin and submental scar deformities. Different transfer types have developed ... this forehead flap to treat different regions and ranges of chin and submental scar deformities.: Methods ...

    Abstract Background: The chin and submental regions are located at the junction of the face and neck. Its function and aesthetic appearance can be seriously affected when scar deformities cause the cervico-mental angle to disappear. The expanded forehead flap pedicled with superficial temporal vessel(s) is a surgical treatment for chin and submental scar deformities. Different transfer types have developed for this flap based on individual situations. At present, there is no unified treatment strategy for applying this forehead flap to treat different regions and ranges of chin and submental scar deformities.
    Methods: Ninety one cases were collected from patients with chin and submental scar deformities that were treated using the expanded forehead flap pedicled with superficial temporal vessels from January 2008 to December 2018. The authors divided the chin and submental scar deformities into 4 types according to different regions and ranges, and summarized flap survival and complications of 5 different transfer forms used to treat scars for creating feasible treatment strategies. We followed up 76 cases, investigating the satisfaction of appearance and texture of the flaps, improvement of neck movement, and scar recurrence.
    Results: Expanded forehead flaps were used to repair 91 cases of chin and submental scar deformities. According to the postoperative flap survival and complications of flap blood supply, the treatment strategies are as follows: Bilateral cutaneous and subcutaneous pedicled forehead flaps are applied to treat scars in bilaterally symmetrical large-scale scars in Zone LCL. Unilateral pedicled forehead flaps are applied to treat small-scale scars in Zone C and Zone L. Unilateral pedicled plus contralateral vascular anastomosis and unilateral pedicled plus contralateral super thin forehead flaps are applied to treat the moderate-scale scars of Zone LC. Mean follow-up period was 81 months (range 28-131), 93.4% (71/76) was satisfied with appearance and texture of the flaps, 97.4% (74/ 76) was satisfied with the improvement of neck movement, and 2.6% (2/76) occurred scar recurrence.
    Conclusions: Five different types of expanded forehead flaps pedicled with superficial temporal vessels can be used to repair differential scar deformities of the chin and submental regions and achieve good therapeutic effects.
    MeSH term(s) Chin/surgery ; Cicatrix/surgery ; Forehead/surgery ; Humans ; Reconstructive Surgical Procedures ; Skin Transplantation ; Surgical Flaps/surgery
    Language English
    Publishing date 2021-12-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1159501-2
    ISSN 1536-3732 ; 1049-2275
    ISSN (online) 1536-3732
    ISSN 1049-2275
    DOI 10.1097/SCS.0000000000008412
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  8. Article ; Online: Fetal Crown-Chin Length to Crown-Rump Length Ratio as a Prenatal Sonographic Marker for Triploidy at First Trimester.

    Yang, Xin / Li, Yingsi / Wu, Siqi / Du, Kun / Li, Dongzhi / Liao, Can

    Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine

    2021  Volume 41, Issue 3, Page(s) 679–684

    Abstract: Objectives: To investigate the ratio of Crown to Chin length (CCL) to Crown-rump length (CRL ...

    Abstract Objectives: To investigate the ratio of Crown to Chin length (CCL) to Crown-rump length (CRL) between triploid and normal fetuses at first trimester and establish a reference range of fetal CCL/CRL ratio.
    Methods: Three hundred and twenty-five normal and 12 triploid fetuses were reviewed in this study. The image of fetal Crown-rump length (CRL) was acquired retrospectively. CCL and CRL were measured offline by two experienced sonographers, we obtained each averaged value of CCL and CRL as the final data for analysis. A normal range of CCL was established and CCL/CRL ratio was analyzed in normal and triploid fetuses.
    Results: In 325 normal fetuses, CCL increased with gestational age following a linear trend from 20 mm at a CRL of 45-36 mm at a CRL of 84 mm (CCL (mm) = 3.65 + 0.38 CRL, R
    Conclusions: The present study demonstrates that fetal CCL/CRL ratio can be used and effective ultrasound marker in screening for triploidy during the first trimester.
    Language English
    Publishing date 2021-05-21
    Publishing country England
    Document type Journal Article
    ZDB-ID 604829-8
    ISSN 1550-9613 ; 0278-4297
    ISSN (online) 1550-9613
    ISSN 0278-4297
    DOI 10.1002/jum.15749
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  9. Article ; Online: Traditional Knowledge of Textile Dyeing Plants: A Case Study in the Chin Ethnic Group of Western Myanmar

    Ling, Tial C. / Inta, Angkhana / Armstrong, Kate E. / Little, Damon P. / Tiansawat, Pimonrat / Yang, Yong-Ping / Phokasem, Patcharin / Tuang, Za Khai / Sinpoo, Chainarong / Disayathanoowat, Terd

    Diversity. 2022 Dec. 02, v. 14, no. 12

    2022  

    Abstract: ... informants from 14 communities of the Chin ethnic group of Myanmar. The Chin communities we interviewed used ...

    Abstract Traditional knowledge of the plants used for textile dyeing is disappearing due to the utilization of synthetic dyes. Recently, natural products made from plants have gained global interest. Thus, preserving traditional knowledge of textile dyeing plants is crucial. Here, we documented this knowledge by interviewing 2070 informants from 14 communities of the Chin ethnic group of Myanmar. The Chin communities we interviewed used a total of 32 plant species for textile dyeing from 29 genera in 24 families. Chromolaena odorata, Lithocarpus fenestratus, and L. pachyphyllus were the most important dye species. The most common responses described dyes that were red in color, produced from leaves, derived from tree species, collected from the wild, and used as firewood ash as a mordant to fix the dye to the fabrics. According to the IUCN Red List of threatened species, one species was registered as Data Deficient, 20 species still needed to be categorized, and 11 species were categorized as Least Concern. This study will help re-establish the use of natural dyes, encourage the cultural integrity of the indigenous people, and serve as an example for other communities to preserve their traditional knowledge of plant textile dyes.
    Keywords Chromolaena odorata ; Lithocarpus ; case studies ; color ; dyeing ; dyes ; fabrics ; fuelwood ; indigenous knowledge ; indigenous peoples ; threatened species ; trees ; Myanmar
    Language English
    Dates of publication 2022-1202
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article ; Online
    ZDB-ID 2518137-3
    ISSN 1424-2818
    ISSN 1424-2818
    DOI 10.3390/d14121065
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: [A comparative study of tongue appliance combined with chin-cup and facemask in the treatment of anterior crossbite].

    Liu, Ming-Jin / Li, Le / Chen, Ju-Fang / Hao, Xin / Yang, Ru / Tian, Yu-Lou

    Shanghai kou qiang yi xue = Shanghai journal of stomatology

    2020  Volume 30, Issue 4, Page(s) 429–434

    Abstract: Purpose: To compare the efficacy of tongue appliance combined with chin-cup and facemask ... after treatment, using tongue appliance combined with chin-cup (n=30) and facemask (n=30). Cephalometric ... combined with chin-cup group(P<0.05). H-C3 decreased in both groups(P<0.05), while H-S, H-Ar increased(P<0 ...

    Abstract Purpose: To compare the efficacy of tongue appliance combined with chin-cup and facemask in the treatment of anterior crossbite, as well as the effects on the position of hyoid bone and airway, so as to provide reference for clinic.
    Methods: Sixty cases with anterior crossbite were selected after treatment, using tongue appliance combined with chin-cup (n=30) and facemask (n=30). Cephalometric radiographs were taken before and after treatment, skeletal, dental, hyoid, and airway space measurements were analyzed with Winceph 9.0 and AutoCAD 2016. SPSS 21.0 software package was used for statistical analysis.
    Results: Both appliances had a good effect on anterior crossbite. After treatment, SNA, ANS-PNS significantly increased(P<0.05), and SN-MP significantly increased(P<0.05). The upper anterior teeth showed a buccal inclination(P<0.01), the lower anterior teeth had a lingual inclination, and the overjet became normal(P<0.01). UL-E increased in both groups(P<0.05), PLA significantly increased in tongue appliance combined with chin-cup group(P<0.05). H-C3 decreased in both groups(P<0.05), while H-S, H-Ar increased(P<0.01), suggesting that the hyoid bone moved backward and downward. PNS-UPW increased in both groups(P<0.01), and U-MPW increased in facemask group(P<0.01).
    Conclusions: Facemask and tongue appliance combined with chin-cup can both promote the development of the maxilla, cause a clockwise rotation of the mandible, and effectively correct the anterior crossbite. Both methods can cause a backward and downward displacement of hyoid bone. Facemask can enlarge the width of nasopharynx and palatopharynx airway, while only the width of nasopharynx can be increased by tongue appliance combined with chin-cup.
    MeSH term(s) Cephalometry ; Chin ; Extraoral Traction Appliances ; Humans ; Malocclusion ; Malocclusion, Angle Class III ; Mandible ; Masks ; Maxilla ; Tongue/diagnostic imaging
    Language Chinese
    Publishing date 2020-10-31
    Publishing country China
    Document type Journal Article
    ZDB-ID 2269714-7
    ISSN 1006-7248
    ISSN 1006-7248
    Database MEDical Literature Analysis and Retrieval System OnLINE

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