Rejuvenation of the ageing face and the role of orthodontics: Guidelines for management.

The article reviews the ageing changes of the midfacial and maxillary bones, the mandible, the overlaying soft tissues and the smile, and presents clinical guidelines aiming to rejuvenate older faces by means of orthodontic therapy. With regard to the ageing changes, the maxillary skeleton appears to rotate clockwise inferior to the orbit and becomes retrusive, and as a general pattern the midface contracts and deteriorates with age. Resorption below the mental foramen, reduction in alveolar height, loss of bone at the chin region, and relative increase in size and shape are signs of an aged mandible.

Secondary implant stability outcome of immediate versus late placed variable-thread implants in the maxilla. A retrospective cohort study.

Background: The healing of xenograft augmentated intra-alveolar gaps following immediate implant placement (IMIP) after tooth extraction is likely to differ in time and density compared to the native bone part that directly contacts the implant.

Material And Methods: Secondary implant stability (SIS) data recorded 2-3 months following a late implant placement protocol (LIP) (n= 43) and 6-8 months following an immediate implant placement protocol (IMIP) (n=33) of variable-thread implants (Nobel Active™) in the maxilla were retrospectively collected from files of 63 patients (42 females, 21 males). Statistical analysis was performed using a generalized estimating equation model (GEE).

Updated secondary implant stability data of two dental implant systems. A retrospective cohort study.

Background: At present, updated secondary implant stability data generated by actual versions of resonance frequency analysis (RFA) and mobility measurement (MM) electronic devices of 2 different implant systems with actual manufactured surfaces seem to lack and/or are incomplete.

Material And Methods: Secondary implant stability data based on both RFA and MM measurements were collected and analyzed from 44 formerly treated patients (24 f, 20 m) that received either Ankylos Cellplus (Ø3.5mm) (A) (n=36) or Straumann regular neck SLA tissue level (Ø4.

ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency.

Background: Implant stability testing at various stages of implant therapy by means of resonance frequency analysis is extensively used. The overall measurement outcome is a function of the resulting stiffness of three entities: surrounding bone, bone-implant complex, and implant-Smartpeg complex. The influence of the latter on the overall measurement results is presently unknown.

The effect of various adhesives, enamel etching, and base treatment on the failure frequency of customized lingual brackets: a randomized clinical trial.

Objectives: The aim of this paper was to compare failure differences in precious metal customized lingual brackets bonded with three adhesive systems. Also, differences in failure of non-precious metal brackets with and without a silicatized base layer bonded with the same adhesive, as well as the influence of enamel etching prior to using a self-etching dual cure resin were explored.

Materials/methods: Five different groups were defined in a semi-randomized approach.

Treatment duration and gingival inflammation in Angle's Class I malocclusion patients treated with the conventional straight-wire method and the Damon technique: a single-centre, randomised clinical trial.

Objective: To compare the duration of orthodontic treatment and Gingival Index (GI) scores in Class I malocclusion patients treated with a conventional straight-wire method (CG) or the Damon technique (DT).

Design: Two-arm, parallel, randomised clinical trial Setting: A postgraduate orthodontic clinic Participants: Patients with a balanced facial profile, a full permanent dentition and Angle's Class I malocclusion with moderate crowding.

Methods: The primary outcome was the duration of orthodontic treatment in months.

How orthodontic records can influence torque choice decisions?

Introduction: The aim of this study was to investigate whether the addition of records can influence intra- and inter-rated agreement on torque choices made to treat a group of patients with various malocclusions.

Methods: Forty-eight patients were presented to five orthodontic specialists in three different occasions. During the first session, the participants were shown only the models and intraoral photos of the patients; extraoral photos were added during the second session, and cephalometric X-rays were further supplemented during the third session.

Orthodontics and its interactions with other dental disciplines.

Preservation or alteration of the natural dentition to an optimal state of health, function, comfort, and esthetics remains the primary goal of dentistry. However, referral of patients by general dentists to orthodontic specialists may be complex as it involves the interaction of the two dental professionals and the patient. Because there is a marked variation in referral rates between the dentists and many patients may be referred inappropriately, a clear understanding of what is known about current orthodontic treatment possibilities, limitations and inherent risks is necessary.

Factors affecting the duration of orthodontic treatment: a systematic review.

The aim of this study was to systematically investigate the literature for articles referring exclusively to the duration of orthodontic therapy and to explore the various factors that could affect this. A Medline search from 1990 to the first week of March 2005 was conducted, the Cochrane Database for Systematic Reviews was utilized, five orthodontic journals were hand searched, the abstracts of related articles were reviewed to search for any relevant studies that might have been missed, and the reference lists of the retrieved articles were hand assessed. Eligibility was determined by reading the reports identified by the search.