International journal of orthodontics (Milwaukee, Wis.)最新文献

To overcome the challenge of maintaining the perfect adaptation of the retainer wire to the lingual surfaces of an anterior tooth while bonding, we have designed a facile method which will aid in accurate and precise placement of lingual retainer wire to ensure longterm stability ofan orthodontic treatment result.

One of the challenges posed by diastema closure treatment in the presence of tooth size discrepancy is to achieve adequate distribution of the spaces between the teeth. The use of the Digital Smile Design can assist the clinician in visualizing and measuring dentogingival discrepancies with maximum predictability. The present clinical case describes an approach to space distribution with assistance of the digital tool, allowing adequate restorative procedures. The protocol used was shown to be efficient, achieving the esthetics desired by the patient both during and after multidisciplinary treatment, as well as having adequate stability.

This study investigated the effect of diameter on stability of mini-screws used as skeletal anchorage for maxillary canine retraction utilizing two different force magnitudes. Findings revealed that increasing the diameter of the mini-screws increases their stability. However, utilization of a high retraction force negatively affects stability especially with small diameters mini-screws.

No orthodontic system combines aesthetics and comfort which delivers optimal treatment outcomes. This case report outlines how combining an upper lingual and a lower ceramic appliance can provide the best combination ofaesthetics whilst maintaining patien comfort, when undertaking class II camouflage treatment involving extraction of the upper first premolars.

After distalization of maxillary molars, retaining it in the new position is of utmost importance. There are various methods available to avoid taxing freshly distilized molars. We have discussed various methods to reinforce anchorage post-molar ditalization. We have introduced a new appliance that is a modified Nance palatal button for continuous distally directed force on the molars.

We present a novel method of reinforcing anchorage by utilizing ankylosed teeth. This technique provides simple solutions in otherwise challenging and complex cases.

The use of mini-screws, also known as temporary anchorage devices (TADs), to obtain absolute anchorage has become very popular in orthodontics. Nevertheless, potential complications, including traumatic soft tissue lesions, accompany their use. We propose a method to cover the mini-screw head to prevent traumatic soft tissue lesions and promote patient comfort, while maintaining some separation between the composite resin and the peri-implant tissue.

A 10-yearfemale presented a skeletal Class II relation with 7mm of overet, 40% overbite, and bilateral posterior lingual crossbite. Two phase therapy was planned to correct Class II skeletal relation, overjet, overbite, and achieve lip competency. Phase I therapy was done with Twin Block appliance to advance the retrognathic mandible. Phase II therapy was accomplished with fixed appliance for arch coordination, to correct minor displacement, and to finalize occlusion. Post treatment skeletal Class I relation was achieved. Incisors inclination was improved, ideal overjet and overbite with bilateral class I molar relationship was achieved. As the mandible advanced, lip competency, facial convexity, and mentolabial sulcus improved.

The aim of this article is to describe the retreatment ofa high angle skeletal Class II patient with a moderate anterior crossbite who had previous mandibular orthognathic surgery. A traditional orthodontics/orthognathic surgery approach was selected for treatment. Facial balance was improved, and the final occlusal relationships were good.