Background Orthodontic treatment may result in undesirable side effects, such as root resorption and a decrease in the size of the pulp tissue which could be associated with the duration of the orthodontic treatment. Piezocision-assisted tooth movement was introduced as a minimally invasive surgical procedure to shorten orthodontic treatment time. This prospective randomized clinical trial was aimed to compare the pulp volume changes of maxillary anterior teeth after en-masse retraction with or without piezocision-assisted orthodontics. Methods Patients who required orthodontic treatment with bilateral maxillary first premolar extractions and en-masse retraction were recruited. Patients were randomly divided into extraction with piezocision, or only extraction, serving as controls. Pulp volume and root length changes of the maxillary six anterior teeth were measured and compared between the two groups using a 3-Dimensional analytical software. Paired and independent sample t-tests were used to compare within and between groups. Bivariate correlation was done between the mean change in pulp volume and its corresponding root length. The significance level was set at α = 0.05. Results A total of 23 patients were included, 12 in the piezocision, and 11 in the control group. At the end of the en-masse retraction phase, (mean = 122.74 ± 3.06 days) pulp volume was significantly decreased in all six anterior teeth in both groups (P < 0.01). The decrease in pulp volume was not statistically different between both groups, (P > 0.05). There was a statistically significant but moderate correlation only between the pulp volume change of the right canine and its root length, r = 0.44, P = 0.034. Conclusions The effect of piezocision-assisted orthodontic tooth movement on the pulp volume was comparable to the conventional orthodontic treatment. The degree of change in pulp volume does not appear to be related to the amount of root resorption. Trial registration NCT03180151. Registered December 25, 2016, retrospectively registered, https://clinicaltrials.gov/ct2/show/record/NCT03180151.

Objectives To compare the amount of en-masse retraction with or without piezocision corticotomy, to assess the type of tooth movement, to evaluate root integrity after retraction, and to record reported pain levels. Materials and Methods This randomized, controlled clinical trial included 26 orthodontic patients requiring premolar extraction. The patients were divided into two groups: (1) an extraction with piezocision corticotomy group (PCG) and (2) an extraction-only group, which served as the control group (CG). Cone-beam computed tomography images were acquired before and 4 months after the initiation of en-masse retraction utilizing miniscrews. The following variables were assessed: the amount of en-masse retraction, incisor inclination, incisor and canine root resorption, and patient-reported pain. Results Twelve and 11 participants completed the entire study in the PCG and CG, respectively. The amount of en-masse retraction was significantly greater in the PCG compared to the CG (mean = 4.8 ± 0.57 mm vs 2.4 ± 0.33 mm, respectively [P &lt; .001]). There was also significantly less tipping and root resorption of incisors in the PCG (P &lt; .05). The reported pain was significantly higher on the first day in the PCG compared to the CG (P &lt; .001); however, it became similar between the groups after 24 hours. Conclusions Piezocision corticotomy enhanced the amount of en-masse retraction two times more with less root resorption. However, future studies are required to assess the long-term effects of this technique.

Distalization is a conservative method that is utilized in orthodontics to gain space by moving posterior teeth distally. It may be combined with other space gaining strategies, such as expansion, or can be used alone. Many methods have been used for distalization. These methods differ significantly in their place, whether to be extraoral or intraoral, site of action in upper and/or lower arch, and cooperation needed by the patient if it is removable or fixed. This review illustrates some of the most commonly used methods for distalization with a brief presentation of three cases that incorporated successful distalization techniques.

Class II malocclusion in nongrowing patients is a great challenge in treatment especially if the degree of malocclusion is severe. In such cases, the use of miniscrews for orthodontic camouflage can produce results comparable to that of orthognathic surgery. This case report presents an adult patient with severe Class II malocclusion combined with bilateral posterior crossbite, deep bite, a crowded lower arch, and a history of extraction of the lower right first molar. The treatment involved upper arch expansion by a quad helix appliance followed by the extraction of the right and left upper 1st premolars. A miniscrew-assisted straight wire technique was used to close the extraction space and reduce the overjet. Lower molar protraction was done to close the previous extraction space in the lower arch. At the end of treatment, overjet was reduced, lower arch crowding was relieved, lip competency was established, and the wide buccal corridor was reduced with a pleasing smile and normal facial proportions.

Background: Musculoskeletal disorders' (MSDs) pain is a major health problem for dental personnel, and it has a bad effect on life and works quality of dental Personnel. Aim and Objectives: This study was conducted to determine the prevalence of neck, lower back, and shoulder pain, and its associated risk factors in Jeddah, Saudi Arabia. Methods: A cross-sectional study was conducted including 105 dental personnel, the participants answered the questionnaire electronically, the questionnaire consist of 3 main parts, demographic questions, questions about organizing the work, and questions about working conditions. Results: the majority of the respondents (53%) were dentists and (82%) were females. The most prevalent MSD during the previous 12 months was reported at the neck (73.3%, n=77), lower back (72.4%, n=76), and then shoulders (70.5%, n=74). (68%) of the dental personnel does their work while sitting down. (12%) always do daily exercises and (53%) exercise sometimes. (25.7%) of personnel had sought medication for MSD pain during the previous 12 months. Conclusion: There was a high prevalence of MSDs. neck, lower back, and shoulder pain among dental personnel in Jeddah, Saudi Arabia.

Skeletal open bite is one of the most challenging malocclusions to treat and maintain due to the difficulty and instability of correction. Although a combination of orthodontic treatment and orthognathic surgery may be the ideal approach in most cases, the complications, risks, and costs of surgery have sparked an interest in alternative treatment options that use temporary anchorage devices to achieve orthognathic-like effects. Adult patients can be treated without the need for special compliance using temporary anchorage devices such as miniscrews. This case report demonstrates a goal-oriented strategy for nonsurgical treatment of a complex skeletal open bite malocclusion in an adult patient using miniscrews and a modified multiloop edgewise arch wire (MEAW) technique, with the results evaluated clinically and cephalometrically.

This case report presents the treatment of a 12-year-old female with a severely crowded upper arch, severely palatally displaced upper premolars and lateral incisors, large midline diastema, lower midline deviation to the right, class III dental and skeletal relationships due to mild maxillary deficiency, retroclined lower incisors, straight profile, and retrusive lips. A nonextraction treatment approach is described, in which the upper and lower arches were expanded to their original three dimensions using a trihelix expander, a lip bumper appliance, and a fixed orthodontic appliance. Retention was also planned in accordance with the original malocclusion, which inclued a full-time-wear upper wraparound retainer, upper and lower anterior fixed lingual retainers, upper frenectomy, and fibrotomy for rotated teeth. Conclusion. Severe malalignment of teeth does not necessarily require extraction treatment. Gaining space is an art that requires a proper assessment of the anteroposterior and transverse dimensions of alveolar arches, lip prominence, and postorthodontic stability.

Background The addition of antibacterial agents to oral prophylaxis materials showed inhibition of plaque accumulation and bacterial acid production. This study aimed to test the antimicrobial effect of distinctive oral mouth washes on an exemplary of oral bacteria after the addition of zein-coated MgO nanoparticles.Materials and Methods Three hundred and twelve groups were used in this study. MgO nanoparticles in five concentrations with zein and without zein-coating, were incorporated in three oral mouth washes: Listerine Zero, Listerine Total Control and Oral B in the mass percentages of 0.3%, 0.5%, 1%, 2%, 5% and 10%, in addition to controls with no MgO nanoparticles. The three mouthwashes with variable concentrations were studied in opposition of Staphylococcus aureus, Streptococcus mutans, Enterococcus faecalis and Candida albicans using two different tests, the Disc Diffusion Test (DDT) and Direct Contact Test (DCT). Data was analyzed with Kruskall-Wallis and Mann-Whitney U tests.Results Results showed a highly significant statistical difference of antimicrobial activity for all tested mouth washes with Zein coated MgO nanoparticles on Streptococcus mutans, Staphylococcus aureus, Enterococcus faecalis, and Candida albicans in the disc diffusion test. While in the DCT, all tested mouth washes with MgO nanoparticles with and without zein coating showed antimicrobial activity on all tested microorganisms.Conclusion Zein coated MgO nanoparticles is a potent antimicrobial agent when added to oral mouth washes. It is recommended to incorporate Zein MgO nanoparticles to Oral mouth washes to improve its antibacterial property.