title: A Comparative Study of 3-Dimensional Titanium Versus 2-Dimensional Titanium Miniplates for Open Reduction and Fixation of Mandibular Parasymphysis Fracture.
abstract: BACKGROUND
  Three dimensional titanium plating system was developed by Farmand in 1995 to meet the requirements of semi rigid fixation with lesser complication. The purpose of this in vivo prospective study was to evaluate and compare the clinical effectiveness of three dimensional and two dimensional Titanium miniplates for open reduction and fixation of mandibular parasymphysis fracture.
  
  
  METHODS
  Thirty patients with non-comminuted mandibular parasymphysis fractures were divided randomly into two equal groups and were treated with 2 mm 3D and 2D miniplate system respectively. All patients were systematically monitored at 1st, 2nd, 3rd, 6th week, 3rd and 6th month postoperatively. The outcome parameters recorded were severity of pain, infection, mobility, occlusion derangement, paresthesia and implant failure. The data so collected was analyzed using independent t test and Chi square test (α = .05).
  
  
  RESULTS
  The results showed that one patient in each group had post-operative infection, occlusion derangement and mobility (p > .05). In Group A, one patient had paresthesia while in Group B, two patients had paresthesia (p > .05). None of the patients in both the groups had implant failure. There was no statistically significant difference between 3D and 2D miniplate system in all the recorded parameters at all the follow-ups (p > .05).
  
  
  CONCLUSIONS
  3D miniplates were found to be better than 2D miniplates in terms of cost, ease of surgery and operative time. However, 3D miniplates were unfavorable for cases where fracture line was oblique and in close proximity to mental foramen, where they were difficult to adapt and more chances for tooth-root damage and inadvertent injury to the mental nerve due to traction.
authors.affiliation: Department of Trauma and Emergency, All India Institute of Medical Sciences (AIIMS), Jodhpur, 342005 Rajasthan India.
authors.forename: Yogesh
authors.initials: Y
authors.lastname: Mittal
authors.affiliation: Department of Oral and Maxillofacial Surgery, Government Dental College, Kottayam, 686008 Kerala India.
authors.forename: K George
authors.initials: KG
authors.lastname: Varghese
authors.affiliation: Department of Oral and Maxillofacial Surgery, Government Dental College, Kottayam, 686008 Kerala India.
authors.forename: S
authors.initials: S
authors.lastname: Mohan
authors.affiliation: Department of Oral and Maxillofacial Surgery, Government Dental College, Kottayam, 686008 Kerala India.
authors.forename: N
authors.initials: N
authors.lastname: Jayakumar
authors.affiliation: Department of Oral and Maxillofacial Surgery, Government Dental College, Kottayam, 686008 Kerala India.
authors.forename: Somil
authors.initials: S
authors.lastname: Chhag
keywords: Mandibular parasymphysis fracture; Open reduction and internal fixation; Three dimensional titanium miniplate (3D); Two dimensional titanium miniplate (2D)