Aim: This study aims to investigate the relationship between the cephalometric soft tissue parameters value of the facial profile before the start of applying of en masse retraction of Maxillary Anterior teeth (after 14 and 24 extraction) and the dam
ping of the applied orthodontic force v after 40 days of its application. Materials and Methods: material research consist from cephalograms of six patients (3 females and 3 males) between 17 and 19 years from patients undergoing orthodontic evaluation at the Department of Orthodontics and Dentofacial Orthopedics at Tishreen University , ortho. Plane treatment of those patient included 14 and 24 extraction in order to reduce the big sagital overjet by bodily en masse retraction of Maxillary Anterior teeth to achieve o aesthetic harmony of the soft tissues of the facial profile of each one of these particular patients. Pearson's Correlation Coefficient Analysis was performed. The Correlation was verified between each cephalometric variables (both those related to the soft tissue of the facial profile and to the variables determining incisors and the upper first molars axes inclination) on the one hand and between the amount of force at the beginning of the movement (F1) and the amount of force after forty Day of starting application of force (F2), and the amount of force damping (F1 - F2), and the distance that have been closed due to the b bodily en masse retraction of Maxillary Anterior teeth during 40 days. This study showed a certain relationship between the primary values of the soft tissue variables of the facial profile and the force damping applied to achieve bodily en masse retraction of Maxillary Anterior teeth.
This study aimed to compare the dimensions of soft facial tissues
between the open bite and deep bite malocclusion cases, in
patients with sagittally Class I occlusion.
The aime of this study was to determinethe effect of gender on the soft tissue of the
chin at each type of rotation patterns of the lower jaw (Anterior - normal - Posterior)
The sample consisted of 100 X-ray Lateral cephalometric radiographs of (69
female _ 31
male) adults, has been selected according to the following conditions: Age between 18-26
years old, , exclusion of all cases of Intenseocclusal abnormalities ,
Permanentocclusionand there is noformaldentalabnormalitieswithout takinginto accountthe
thirdmolars, The absence ofa previousorthodontic treatment, the patient free fromsystemic
diseasesorcongenital malformationsanddevelopmentaldisordersandsyndromesand there is
no story of a previous surgery in the head and neck area
The sample was divided into groups according tosex andmandibularrotation(Anterior -
normal - Posterior). Then we studied variablesrepresentative the lower jaw rotation
andanother ones representativethemeasurementsof the chinsoft tissue.
The results showed a difference theaveragesof the soft tissue thickness and the
indicators of mandible rotation between the sexes In favor of males, And theaveragesof
thevariables showed Correlationbetween chinsofttissuethicknessin femaleswiththree
typesoflower jawrotation Compared with males.
Orthodontic treatment is considered successful only if optimal esthetic and
function are achieved.The objective of this study was to compare facial soft tissue profile changes
produced by a new technique (elastic forces based on skeletal anchorage
mini-plates) with changes
produced by conventional class-II elastic forces.
