Dental and skeletal changes after intra-oral molar distalization using a “Distal Driver” appliance: a pilot study
Journal Title: Journal of Stomatology (Czasopismo Stomatologiczne) - Year 2016, Vol 69, Issue 6
Abstract
frequent consequence of early loss of deciduous molars indicating distalisation of the mesialised molar tooth. A number of methods using either extra-oral appliances or intra oral appliances of various types have been suggested. While extra-oral appliances exert a high but intermittent force many of the intraoral ones deliver a modest, though constant, force and demands no patient cooperation. Aim of study. To investigate the effect of an intra-oral fixed appliance (Distal Driver) based on a NiTi spring incorporating also a standardised anchorage unit on the position of the maxillary first molar as well as on the facial skeleton and the dentition in general. Material and methods. The experimental group comprised 6 child patients exhibiting a distal molar relationship (Unilateral or Bilateral) of at least ½ premolar unit. The mesialised molars were distalised by means of a “Distal Driver” exerting a force of 150 gm for a period of 3-4 weeks. Anchorage was created by a fixed modified palatal bar cemented on the premolars supporting an acrylic palatal button ad modum Nance. The clinical situation was recorded before and after molar distalisation by means of study casts, cephalograms, panoramic radiographs as well as intra-oral photographs. The distalisation of the molars as well as the effect on anchorage teeth was quantitated on digital models derived from the plaster casts. Evaluation of the observed distal and vertical changes in molar position was performed on the lateral cephalogram. Results. Cast analysis showed a clear distalising effect on the maxillary first molars ranging from 1.25 mm to 6.18 mm as well as mesial movement of the premolar anchorage teeth from 0.46 mm to 5.55mm. The cephalometric analysis revealed a first molar distalisation of 0.9 mm to 5.6 mm though again with a mesial movement of the first premolar varying from 0.5 mm to 3.7 mm. A clear distal tipping of the first and second molars simultaneously with a mesial tipping of the first premolars was also recorded. Conclusion. The Distal Driver constitutes an efficient method of maxillary molar distalisation though is often accompanied by a distal rotation of these teeth and a mesial tipping of the anchorage premolars. Careful monitoring of anchorage loss is necessary if good results are to be achieved.
Authors and Affiliations
Gabriela Urbaniak-Malinowska, Marta Gibas-Stanek, Stephen Williams, Wojciech Stós, Bartłomiej W. Loster
Keywords
Related Articles
- EP ID EP187831
- DOI -
- Views 80
- Downloads 0
Variations in orthodontic bracket retention related to base design. Comparison of foil mesh and anchor pylons brackets
of metal brackets with foil mesh (3M, Victory Series), one piece metal brackets (Cannon Ultra) and aesthetic plastic brackets (Cannon Ultra) and to evaluate the sandblasting effect on previously used metal bracket bases...
Quantitative Analysis of Selenomonas noxia in Periodontitis Patients via Two Different Sample Collection Methods
Selenomonas noxia is suspected to play a significant role in the severity of periodontitis. We analyzed the relationship between S. noxia quantity and clinical parameters (periodontal pocket depth [PD], papillary bleedin...
Prevention of traumatic injuries and dental treatment of epileptic patients
Epileptic patients constitute a group with specific dental care needs. The necessity to prevent traumatic injuries to the head and oral cavity is emphasized in literature as these occur in this group considerably more of...
The laser method and its effect on the oral mucous membrane in the context of the preprosthetic surgery
Background: Various treatment methods are applied in the preprosthetic surgery. The most frequently used are lasers, standard excision of the lesion with a scalpel and with an electrocauter. As a subject of the analysis...
Early childhood caries in relation to sweet foods consumption and teeth hygiene procedures in nursery-age children
Background: The accurate and regular cleaning of the oral cavity, connected to the anticaries feed scheme, it is essential to reduce the risk of early childhood caries (ECC). Objective: The aim of the study was to eval...