Types of Intermaxillary Fixation and Their Interaction With Palatine Fracture Reduction

Pedemonte, Christian; Valenzuela, Katherine; González, L. Edgardo; Vargas, Ilich; Noguera, Alfredo

doi:10.1016/j.joms.2019.06.006

Cited by 1 publication

(1 citation statement)

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“…Contemporaneous management of mandibular fracture involves maxillomandibular fixation (MMF). This commonly involves using wires and metal fixatures to localise the fractures following the application of surgical fixatures (e.g., arch bars and Leonard Buttons) [ 8 , 9 , 10 , 11 ], followed by intra-oral surgical access in the buccal sulcus and application of load-sharing osteosynthesis according to Champy principles. It is postulated that the dependent position of the surgical incision in the buccal sulcus makes the site vulnerable to biofilm-producing bacteria, and strategies to reduce this load may prove beneficial to fracture management.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Novel Antimicrobial CHX-CaCl2 Coatings on Maxillofacial Fixatures for Infection Prevention

Alostath,

Chatzopoulou,

Holmes

et al. 2023

IJMS

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Maxillofacial surgery placement of fixatures (Leonard Buttons, LB) at close proximity to surgical incisions provides a potential reservoir as a secondary local factor to advanced periodontal disease, with bacterial formation around failed fixatures implicating plaque. To address infection rates, we aimed to surface coat LB and Titanium (Ti) discs using a novel form of chlorhexidine (CHX), CHX-CaCl2 and 0.2% CHX digluconate mouthwash as a comparison. CHX-CaCl2 coated, double-coated and mouthwash coated LB and Ti discs were transferred to 1 mL artificial saliva (AS) at specified time points, and UV-Visible spectroscopy (254 nm) was used to measure CHX release. The zone of inhibition (ZOI) was measured using collected aliquots against bacterial strains. Specimens were characterized using Energy Dispersive X-ray Spectroscopy (EDS), X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). SEM displayed copious dendritic crystals on LB/ Ti disc surfaces. Drug release from double-coated CHX-CaCl2 was 14 days (Ti discs) and 6 days (LB) above MIC, compared to the comparison group (20 min). The ZOI for the CHX-CaCl2 coated groups was significantly different within groups (p < 0.05). CHX-CaCl2 surface crystallization is a new drug technology for controlled and sustained CHX release; its antibacterial effectiveness makes this drug an ideal adjunct following clinical and surgical procedures to maintain oral hygiene and prevent surgical site infections.

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