Maxillofacial space infection experience and risk factors: a retrospective study of 222 cases.

Background: Maxillofacial space infection (MSI) experience review is beneficial for its management.

Aim: To identify potential risk factors predisposing to the exacerbation of MSI and a prolonged length of stay (LOS).

Methods: We performed a comprehensive retrospective review of medical records of 222 MSI patients admitted in Center of Stomatology during 1993-2019.

Developing pediatric three-dimensional upper airway normative values using fixed and interactive thresholds.

Objective: To develop and compare pediatric upper airway three-dimensional normative values using the two most commonly used cone beam computed tomography (CBCT) software: Invivo5 (fixed threshold) and Dolphin 3D (interactive threshold).

Study Design: Out of 3738 CBCT scans, scans of 81 pediatric patients were utilized after applying strict exclusion criteria. The sample was grouped into two age groups (7-11 and 12-17 years).

Computerized measurement of the location and value of the minimum sagittal linear dimension of the upper airway on reconstructed lateral cephalograms compared with 3-dimensional values.

Introduction: Identifying the location and value of the smallest airway dimension can be useful in screening and planning treatment for patients with obstructive sleep apnea. Our objectives in this study were to (1) objectively identify the vertical location and value of the minimum sagittal linear dimension (MSLD) on 2-dimensional reconstructed lateral cephalograms (RLCs), (2) compare the location and value of the MSLD on RLCs with the vertical location and sagittal dimension of the minimum cross-sectional area (MCSA), and (3) investigate the association between the MSLD on RLCs and both the MCSA and the airway volume.

Methods: Cone-beam computed tomography (CBCT) scans of 91 patients, in 3 age groups (<20, 20-40, and >40 years), were used to perform 3-dimensional assessments of the upper airway and reconstruct lateral cephalograms.

Change in the vertical dimension of Class II Division 1 patients after use of cervical or high-pull headgear.

Introduction: The goals of this study were to compare the effects that cervical and high-pull headgear have on the vertical dimensions in Class II Division 1 patients during phase 1 treatment and to compare these effects with untreated predicted growth for the sample population.

Methods: Pretreatment and posttreatment cephalometric radiographs of children who had undergone Class II Division 1 correction with cervical (n = 22) or high-pull headgear (n = 19) were analyzed for the measurements that describe the changes in the vertical component of growth and mandibular position. The groups were matched for age (mean, 9 ± 2.

Assessment of vertical changes during maxillary expansion using quad helix or bonded rapid maxillary expander.

Objective: To determine if there is a significantly different effect on vertical changes during phase I palatal expansion treatment using a quad helix and a bonded rapid maxillary expander in growing skeletal Class I and Class II patients.

Materials And Methods: This retrospective study looked at 2 treatment groups, a quad helix group and a bonded rapid maxillary expander group, before treatment (T1) and at the completion of phase I treatment (T2). Each treatment group was compared to an untreated predicted growth model.

Accuracy of digital American Board of Orthodontics Discrepancy Index measurements.

Introduction: A digital analysis that is shown to be accurate will ease the demonstration of initial case complexity. To date, no literature exists on the accuracy of the digital American Board of Orthodontics Discrepancy Index (DI) calculations when applied to pretreatment digital models.

Methods: Plaster models were obtained from 45 previous patients with varying degrees of malocclusion.

A comparison of compliance in Medicaid versus non-Medicaid patients.

Background: Medicaid patients have been associated with lack of compliance during their orthodontic treatment in comparison with the non-Medicaid patients. In this study, Medicaid and non-Medicaid orthodontic patients' compliance from a state university and private practice orthodontic clinic within close location were analyzed.

Methods: Charts of 30 Medicaid and 30 non-Medicaid orthodontic patients at each orthodontic clinic were reviewed.