Jonathan P T, Thakur Himani, Galhotra Abhiruchi, Galhotra Virat, Gupta Neha
Department of Pedodontics and Preventive Dentistry, Maharaja Ganga Singh Dental College and Research Centre, Sri Ganganagar, Rajasthan, India.
Department of Community and Family Medicine, AIIMS, Raipur, Chhattisgarh, India.
J Indian Soc Pedod Prev Dent. 2018 Jul-Sep;36(3):234-239. doi: 10.4103/JISPPD.JISPPD_51_18.
Dentofacial aesthetics plays an important role in social interaction and psychological well-being because it affects how people perceive themselves and how they are perceived by society. The maxillary labial frenum is a fold of tissue, usually triangular in shape, extending from the maxillary midline area of the gingiva into the vestibule and mid portion of the upper lip. Maxillary anterior spacing or diastema is a common aesthetic complaint of patients and is frequently seen in children especially in the mixed dentition stage.
The direct visual method under natural light was used and the upper lip was lifted with the index finger and thumb of both hands which allowed for the observation and classification of the labial frenum morphology according to Sewerin's typology and its attachment according to Placek et al. The midline diastema was determined by measuring the distance between the midpoints of the mesial surfaces of both central incisors with the help of divider and ruler. The values were recorded in the prepared schedule.
The presence of an abnormal frenum can be a cause in persistent midline diastemas. Tooth movement usually is deferred until eruption of the permanent canines but can begin early in certain cases with very large diastemas.
牙颌面美学在社交互动和心理健康中起着重要作用,因为它影响人们对自己的认知以及社会对他们的看法。上颌唇系带是一层组织皱襞,通常呈三角形,从牙龈的上颌中线区域延伸至前庭和上唇中部。上颌前牙间隙或牙间缝隙是患者常见的美学问题,在儿童中尤为常见,尤其是在混合牙列期。
采用自然光下的直接视觉方法,用双手的食指和拇指提起上唇,以便根据Sewerin分类法观察和分类唇系带形态,并根据Placek等人的方法观察其附着情况。借助分规和直尺测量两颗中切牙近中面中点之间的距离来确定中线牙间缝隙。将数值记录在准备好的表格中。
异常系带的存在可能是持续性中线牙间缝隙的一个原因。牙齿移动通常会推迟到恒牙尖牙萌出,但在某些牙间缝隙非常大的情况下可能会提前开始。