Study protocol for the management of impacted maxillary central incisors: a multicentre randomised clinical trial: the iMAC Trial.

Background: Failure of eruption of the maxillary permanent incisor teeth usually presents in the mixed dentition between the ages of 7 and 9 years. Missing and unerupted maxillary incisors can be regarded as unattractive and have a potentially negative impact on facial and dental aesthetics. The presence of a supernumerary tooth (or odontoma) is commonly responsible for failed eruption or impaction of the permanent maxillary incisors.

Experiences of mentoring ST4-ST5s amongst a group of orthodontic trainers at Bristol Dental School and Hospital.

Objective: To explore the experiences of mentoring higher-grade trainees amongst senior orthodontic trainers at Bristol Dental School.

Design: Qualitative study using interpretive methodology.

Setting: University of Bristol Dental School.

The load/deflection characteristics of thermally activated orthodontic archwires.

The objective of the study was to investigate the load/deflection characteristics of three commercially available thermally active nickel-titanium orthodontic archwires using a standard nickel-titanium archwire as a control. The thermally active wires were Regency Thermal, Orthoform, and Eurotherm and the control was Memory. Round 0.