Fixation methods in sagittal split ramus osteotomy: a systematic review on in vitro biomechanical assessments

Publication date: Available online 14 July 2018

Source: International Journal of Oral and Maxillofacial Surgery

Author(s): K. Kuik, M.H.T. De Ruiter, J. De Lange, A. Hoekema

Abstract

The aim of this systematic review was to assess the stability of rigid internal fixation (RIF) techniques in sagittal split ramus osteotomy (SSRO) based on in vitro biomechanical assessments, with particular interest in large mandibular advancements. In general, RIF methods can be divided into three groups: bicortical screws, miniplates, and a combination of the two. An electronic search of the PubMed, CINAHL, and Embase databases was performed, and studies published between January 2003 and March 2018 were screened for inclusion. Comparative studies with an in vitro experimental design, using biomechanical assessments to measure the stability of RIF methods in SSRO, were included. Of 104 unique studies identified in the initial search, 24 were included. Twenty-two of these 24 studies analyzed an advancement of the mandible of 7 mm or less. The use of a single four-hole or six-hole miniplate was less stable than the use of bicortical screws, hybrid techniques, double miniplates, or grid plates. Two studies analyzed advancements of 10 mm, for which two miniplates placed in parallel and a grid plate showed most stability. Although there was agreement between studies with regard to results, more biomechanical studies are required to quantify the stability of fixation methods in larger mandibular advancements.

https://ift.tt/2NifrAN

HNF4A-related Fanconi syndrome in a Chinese patient: a case report and review of the literature

The p.R63W mutation in hepatocyte nuclear factor-4 alpha (HNF4A) leads to a heterogeneous group of disorders with various clinical presentations. Recently, patients with congenital hyperinsulinism and Fanconi syn...

https://ift.tt/2NdNAlc

Alveolar ridge preservation using a non-resorbable membrane: randomized clinical trial with biomolecular analysis

Publication date: Available online 14 July 2018

Source: International Journal of Oral and Maxillofacial Surgery

Author(s):

https://ift.tt/2LlB5Dp

Coronectomy of mandibular third molars: a clinical and radiological study of 231 cases with a mean follow-up period of 5.7 years

Publication date: Available online 14 July 2018

Source: International Journal of Oral and Maxillofacial Surgery

Author(s): M.H. Pedersen, J. Bak, L.H. Matzen, J. Hartlev, J. Bindslev, S. Schou, S.E. Nørholt

Abstract

Coronectomy is a widely accepted treatment for mandibular third molars that are in close relationship to the mandibular canal. However, long-term studies on morbidity following this procedure have not been presented. The aim of this study was to examine the long-term morbidity after coronectomy, with sensory disturbances of the inferior alveolar nerve (IAN) and root migration as the primary outcome variables. A total of 231 mandibular third molar coronectomies were performed in 191 patients with a mean follow-up period of 5.7 years (range 1–12 years). The prevalence of IAN injury was 1.3%, and 3.5% of the retained roots were removed. None of the reoperations to remove the retained roots caused IAN impairment. Infections occurred in 11.7% of the cases and all were treated with antibiotics. Overall, 97% of the retained roots showed signs of migration and 65% showed signs of rotation. Therefore, coronectomy of the mandibular third molars with an intimate relationship to the mandibular canal seems to be a safe treatment modality with a good long-term prognosis.

https://ift.tt/2NNG0P8

In Reply

Publication date: Available online 14 July 2018

Source: Journal of Oral and Maxillofacial Surgery

Author(s): Christopher A. Fanelli, Yoh Sawatari

https://ift.tt/2KV0lV0

Regarding: The Millimeter Mindset: The Dental Underpinnings of an Inborn Surgical Advantage

Publication date: Available online 14 July 2018

Source: Journal of Oral and Maxillofacial Surgery

Author(s): Kevin C. Lee, Hossein E. Jazayeri

https://ift.tt/2Ng7Mmt

Retrospective definition of reaction risk in Italian children with peanut, hazelnut and walnut allergy through component-resolved diagnosis

Publication date: Available online 14 July 2018

Source: Allergologia et Immunopathologia

Author(s): M. Giovannini, P. Comberiati, M. Piazza, E. Chiesa, G.L. Piacentini, A. Boner, G. Zanoni, D.G. Peroni

Abstract

Background

Serum IgE evaluation of peanut, hazelnut and walnut allergens through the use of component-resolved diagnosis (CRD) can be more accurate than IgE against whole food to associate with severe or mild reactions.

Objectives

The aim of the study was to retrospectively define the level of reaction risk in children with peanut, hazelnut and walnut sensitization through the use of CRD.

Methods

34 patients [n = 22 males, 65%; median age eight years, interquartile range (IQR) 5.0–11.0 years] with a reported history of reactions to peanut and/or hazelnut and/or walnut had their serum analyzed for specific IgE (s-IgE) by ImmunoCAP^® and ISAC^® microarray technique.

Results

In children with previous reactions to peanut, the positivity of Arah1 and Arah2 s-IgE was associated with a history of anaphylaxis to such food, while the positivity of Arah8 s-IgE were associated with mild reactions. Regarding hazelnut, the presence of positive Cora9 and, particularly, Cora14 s-IgE was associated with a history of anaphylaxis, while positive Cora1.0401 s-IgE were associated with mild reactions. Concerning walnut, the presence of positive Jug r 1, Jug r 2, Jug r 3 s-IgE was associated with a history of anaphylaxis to such food. ImmmunoCAP^® proved to be more useful in retrospectively defining the risk of hazelnut anaphylaxis, because of the possibility of measuring Cor a14 s-IgE.

Conclusions

Our data show that the use of CRD in patients with allergy to peanut, hazelnut and walnut could allow for greater accuracy in retrospectively defining the risk of anaphylactic reaction to such foods.

https://ift.tt/2LeJAAe