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A retrospective evaluation of iatrogenic dental root damage with predrilled vs drill-free bone anchor screws for intermaxillary fixation.

Artikel i vetenskaplig tidskrift
Författare Fredrik Widar
Hossein Kashani
Sanjiv Kanagaraja
Christer Dahlin
Lars Rasmusson
Publicerad i Dental traumatology
Volym 28
Nummer/häfte 2
Sidor 127–131
ISSN 1600-9657
Publiceringsår 2012
Publicerad vid Institutionen för odontologi
Institutionen för kliniska vetenskaper, Avdelningen för biomaterialvetenskap
Sidor 127–131
Språk en
Länkar dx.doi.org/10.1111/j.1600-9657.2011...
Ämneskategorier Biomaterial

Sammanfattning

Abstract -  Aims: The aim of this study was to retrospectively evaluate iatrogenic dental root damage, caused by two different techniques that utilized bone anchor screws, for intermaxillary fixation (IMF) in orofacial trauma. Materials and methods: The techniques used included either predrilled or drill-free bone anchor screws. A total of 123 patients who required IMF were evaluated (97 men and 26 women). Sixty-four patients were treated in the predrilled group, and 59 patients were treated in the drill-free group. The data were collected over an 8-year period and were analyzed using crosstabs and Fisher's exact test. Results: Injuries to dental roots were found only in the predrilled group. Twenty-nine patients (45.3%) were injured at the time of surgery. One year after surgery, 10 patients (15.6%) had permanently injured dental roots. There was a significant difference in injury rates between the predrilled and drill-free groups 1 year after surgery (P < 0.001). Conclusion: There is an increased potential risk of iatrogenic injury and permanent damage to the dental roots when a technique that involves predrilled holes for bone anchor screws is used.

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