Objectives To assess the effectiveness of bone-anchored maxillary protraction (BAMP) in patients with unilateral cleft lip and palate (UCLP) and whether it was enhanced when preceded by maxillary expansion. Materials and Methods The sample consisted of 28 growing children (9–13 years old) with UCLP and Class III malocclusion. They were divided into two equal groups. In group I, patients were treated with BAMP not preceded by maxillary expansion. In group II, patients were treated with BAMP preceded by maxillary expansion. To assess treatment changes in three dimensions, Cone-beam computed tomography images were taken 1 week after surgical placement of the miniplates (T1) and after 9 months of treatment (T2). Results BAMP produced forward movement of the maxilla in both groups (3.17 mm) and (3.37 mm) respectively, without significant differences between the two groups except for clockwise rotation of the palatal plane in group I (1.60). Conclusions BAMP is an effective treatment modality for correcting midface deficiency in patients with UCLP whether or not maxillary expansion was carried out.

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Aim:The aim of this study was to measure the occlusal parameters of orthodontically treated cases with premolar extraction (experimental group) and compared the result with the measures of non-orthodontic normal occlusion subjects using T-Scan III system. Subjects and methods:The study included 48 participant 32 female and 16 males with age ranging from 17 to 28 years, divided into two groups; experimental group included 24 patients (16 females and 8 males) who finished their orthodontic treatment which included extraction of permanent first premolars teeth and control group which included 27 untreated participants (15 females and 9 males) had class I molar and canine relation with normal anterior and posterior overjet and overbite. T-Scan III occlusal analysis were performed for both groups in centric occlusion. Force distribution on right and left sides and presence of interferences were assessed. Results:The results showed the presence of significant force distribution imbalances and premature contacts in experimental group when measured by the T-Scan technology. These force imbalances and interferences may act as a causative factor in post-orthodontic treatment instability, periodontitis, NCCL, appearance of TMD signs and symptoms and negatively affect the masticatory function.

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Introduction : the aim of this comparative randomized clinical trail (RCT), was to study the effect of Modified Bluegrass "Non-Punitive therapy" on tongue thrust and dentoalvolar structure and to compare it with Conventional Lingual Spurs "Punitive therapy" for an early correction of anterior open bite in mixed and early permanent dentition. Material and Methods:The sample consisted of 20 subjects recruited at Ain Shams university ,orthodontic clinic Ain Shams University. Randomly allocated into 2 groups of subjects, with anterior open bite and Class I malocclusion , 5 subjects were excluded due to not completing follow up process . Group 1(G1) comprised 7 patients treated with Conventional lingual spurs with a mean initial age of 11.14 years (SD, ±1.86). Group 2(G2) consisted of 8 patients treated with Modified Bluegrass appliance, with a mean age of 10.38 years (SD, ±2.45). Results: Baseline demographic and cephalometric characteristics were similar between groups. There were significantly greater overbite improvement in both groups, slightly more in G1(3.2±2.69) than in the G2,( 2.2±1.32),with no statistical Conclusions: Both appliances resulted in an improvement of overbite and tongue position during an early open-bite correction , with similar dentoskeletal changes were observed in both groups after I year of treatment. However ,the C.L.S group showed significant reduction in Mandibular plane angle than the M.B.G group .