The continuously growing esthetic awareness for the facial appearance and the spreading of information about the possibilities of adult treatment by public media result in an increase of adult patients which seek orth...The continuously growing esthetic awareness for the facial appearance and the spreading of information about the possibilities of adult treatment by public media result in an increase of adult patients which seek orthodontic treatment to improve their facial esthetics. In general, these patients show such a severe skeletal deformity that it is detectable even by non-experts because of its extraoral manifestation, which is the main motivation for treatment. Because of the nature of these deformities and because of the lacking growth usable for therapy the only promising treatment for these patients is the combined orthodontic-surgical approach. Besides a stable and functional occlusion with physiologic position of the condyle, the goals of treatment are the improvement of the dental and, above all, facial esthetics since the patient judges the success of treatment mostly by the extraoral appearance. The dentofacial appearance must be defined prior to treatment to plan the individual right approach in knowledge of the different treatment possibilities for Angle Class II deformities and thus be able to reach for both sides—patient and orthodontist—satisfying result. With this article, a systematic therapy concept to treat patients with Class II deformities and skeletal deep bite with a short lower face (short face syndrome) under consideration of the soft tissue analysis is presented.展开更多
The close coal seam group exists in Datong, Xishan, Huozhou, Fenxi and other coalfields. At the same time, the strata between coal seams are usually soft rock composite strata and soft rock composite strata. Because t...The close coal seam group exists in Datong, Xishan, Huozhou, Fenxi and other coalfields. At the same time, the strata between coal seams are usually soft rock composite strata and soft rock composite strata. Because the coal seam is affected by the mine pressure, the integrity of the original surrounding rock cannot be guaranteed, and the joint and crack of the composite weak roof of the lower coal seam are damaged, so it is difficult to control the roadway roof during the excavation, which leads to the phenomenon of spalling or roof fall, and brings difficulties to the periodic maintenance and support work. Based on the analysis of the transportation roadway in coal mining face, the roadway layout and roof support under the condition of short distance coal seam goaf and compound soft roof are studied, so as to provide help for the safe construction of coal mining face under such conditions.展开更多
目的:观察透明质酸(Hyaluronic Acid,HA)颏部填充联合A型肉毒毒素(Botulinum Toxin Type A,BTX-A)对咬肌、颏肌及颈阔肌降肌群进行多点注射在重塑面下1/3美学轮廓中的临床应用效果及安全性。方法:选取2022年10月-2025年3月于笔者科室就...目的:观察透明质酸(Hyaluronic Acid,HA)颏部填充联合A型肉毒毒素(Botulinum Toxin Type A,BTX-A)对咬肌、颏肌及颈阔肌降肌群进行多点注射在重塑面下1/3美学轮廓中的临床应用效果及安全性。方法:选取2022年10月-2025年3月于笔者科室就诊,有下面部轮廓改善需求的98例就医者作为研究对象,采用随机数字表法分为观察组(n=49)和对照组(n=49)。对照组接受HA颏部填充联合BTX-A咬肌注射,观察组接受HA颏部填充联合BTX-A咬肌、颏肌及颈阔肌注射。比较两组治疗前与治疗后1个月下面部形态学指标变化,治疗后全球美学改善量表(GAIS)评分、FACE-Q面部感知量表评分、动态表情自然度及不良反应发生情况。结果:治疗后1个月,两组就医者下面部宽度、面下/中宽度比值均较治疗前减小(P<0.05),颏部长度与颏突度均较治疗前增加(P<0.05),但两组比较差异无统计学意义(P>0.05);两组颏颈角、下颌缘曲线偏斜度均较治疗前减小,且观察组小于对照组(P<0.05),颏唇角均较治疗前增加,且观察组大于对照组(P<0.05);观察组GAIS、FACE-Q评分均高于对照组(P<0.05);两组动态表情自然度评分及不良反应总发生率比较差异无统计学意义(P>0.05)。结论:HA颏部填充联合BTX-A咬肌、颏肌及颈阔肌降肌群进行多点注射,可显著提升下颌缘清晰度,优化颏部形态,提高就医者满意度,是实现面下1/3精细化美学的优选策略。展开更多
文摘The continuously growing esthetic awareness for the facial appearance and the spreading of information about the possibilities of adult treatment by public media result in an increase of adult patients which seek orthodontic treatment to improve their facial esthetics. In general, these patients show such a severe skeletal deformity that it is detectable even by non-experts because of its extraoral manifestation, which is the main motivation for treatment. Because of the nature of these deformities and because of the lacking growth usable for therapy the only promising treatment for these patients is the combined orthodontic-surgical approach. Besides a stable and functional occlusion with physiologic position of the condyle, the goals of treatment are the improvement of the dental and, above all, facial esthetics since the patient judges the success of treatment mostly by the extraoral appearance. The dentofacial appearance must be defined prior to treatment to plan the individual right approach in knowledge of the different treatment possibilities for Angle Class II deformities and thus be able to reach for both sides—patient and orthodontist—satisfying result. With this article, a systematic therapy concept to treat patients with Class II deformities and skeletal deep bite with a short lower face (short face syndrome) under consideration of the soft tissue analysis is presented.
文摘The close coal seam group exists in Datong, Xishan, Huozhou, Fenxi and other coalfields. At the same time, the strata between coal seams are usually soft rock composite strata and soft rock composite strata. Because the coal seam is affected by the mine pressure, the integrity of the original surrounding rock cannot be guaranteed, and the joint and crack of the composite weak roof of the lower coal seam are damaged, so it is difficult to control the roadway roof during the excavation, which leads to the phenomenon of spalling or roof fall, and brings difficulties to the periodic maintenance and support work. Based on the analysis of the transportation roadway in coal mining face, the roadway layout and roof support under the condition of short distance coal seam goaf and compound soft roof are studied, so as to provide help for the safe construction of coal mining face under such conditions.
文摘目的:观察透明质酸(Hyaluronic Acid,HA)颏部填充联合A型肉毒毒素(Botulinum Toxin Type A,BTX-A)对咬肌、颏肌及颈阔肌降肌群进行多点注射在重塑面下1/3美学轮廓中的临床应用效果及安全性。方法:选取2022年10月-2025年3月于笔者科室就诊,有下面部轮廓改善需求的98例就医者作为研究对象,采用随机数字表法分为观察组(n=49)和对照组(n=49)。对照组接受HA颏部填充联合BTX-A咬肌注射,观察组接受HA颏部填充联合BTX-A咬肌、颏肌及颈阔肌注射。比较两组治疗前与治疗后1个月下面部形态学指标变化,治疗后全球美学改善量表(GAIS)评分、FACE-Q面部感知量表评分、动态表情自然度及不良反应发生情况。结果:治疗后1个月,两组就医者下面部宽度、面下/中宽度比值均较治疗前减小(P<0.05),颏部长度与颏突度均较治疗前增加(P<0.05),但两组比较差异无统计学意义(P>0.05);两组颏颈角、下颌缘曲线偏斜度均较治疗前减小,且观察组小于对照组(P<0.05),颏唇角均较治疗前增加,且观察组大于对照组(P<0.05);观察组GAIS、FACE-Q评分均高于对照组(P<0.05);两组动态表情自然度评分及不良反应总发生率比较差异无统计学意义(P>0.05)。结论:HA颏部填充联合BTX-A咬肌、颏肌及颈阔肌降肌群进行多点注射,可显著提升下颌缘清晰度,优化颏部形态,提高就医者满意度,是实现面下1/3精细化美学的优选策略。
