Browsing Bergen Open Research Archive by Author "Hellén-Halme, Kristina"
Now showing items 1-8 of 8
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Aerodynamic characteristics in upper airways among orthodontic patients and its association with adenoid nasopharyngeal ratios in lateral cephalograms
Feng, Xin; Chen, Yicheng; Cai, Weihua; Lie, Stein Atle; Hellén-Halme, Kristina; Shi, Xie-Qi (Journal article; Peer reviewed, 2021)Background Adenoid hypertrophy among orthodontic patients may be detected in lateral cephalograms. The study investigates the aerodynamic characteristics within the upper airway (UA) by means of computational fluid dynamics ... -
Comparison of absorbed doses and organ doses measured with thermoluminescent dosimeters and Gafchromic film for cone beam computed tomography examination of the posterior mandibular region in a head phantom
Cederhag, Josefine; Kadesjö, Nils; Nilsson, Mats; Alstergren, Per; Shi, Xie-Qi; Hellén-Halme, Kristina (Journal article; Peer reviewed, 2023)Objectives We aimed to map the correlation between thermoluminescent dosimeters (TLDs) and Gafchromic film for measuring absorbed doses and to compare minimum, maximum, and mean absorbed doses over larger regions of ... -
Do preterm-born children and adolescents have greater need for dental care as compared to full term-born controls?
Vicente, António; Alward, Lubna; Wiedel, Anna-Paulina; Becker, Magnus; Shi, Xie-Qi; Hellén-Halme, Kristina; Brogårdh-Roth, Susanne (Journal article; Peer reviewed, 2022)Background Preterm birth has been shown to cause various long-term health issues. Children who were born preterm have also been observed to have more dental behaviour management problems (DBMP) during dental examinations ... -
The effect of rapid maxillary expansion on the upper airway’s aerodynamic characteristics
Feng, Xin; Chen, Yicheng; Hellén-Halme, Kristina; Cai, Weihua; Shi, Xie-Qi (Journal article; Peer reviewed, 2021)Background The effect of rapid maxillary expansion (RME) on the upper airway (UA) has been studied earlier but without a consistent conclusion. This study aims to evaluate the outcome of RME on the UA function in terms ... -
Evaluation of Panoramic Radiographs in Relation to the Mandibular Third Molar and to Incidental Findings in an Adult Population
Cederhag, Josefine; Lundegren, Nina; Alstergren, Per; Shi, Xie-Qi; Hellén-Halme, Kristina (Journal article; Peer reviewed, 2020)Objectives The aim was to evaluate the characteristics of the mandibular third molars, especially in relation to the inferior alveolar nerve. Further aims were to investigate incidental findings in panoramic radiographs ... -
Quantitative assessment of cleft volume and evaluation of cleft’s impact on adjacent anatomical structures using CBCT imaging
Vicente, António; Wiedel, Anna-Paulina; Becker, Magnus; Brogårdh-Roth, Susanne; Shi, Xie-Qi; Hellén-Halme, Kristina (Journal article; Peer reviewed, 2024)Objectives To determine pre-operative cleft volume and evaluate cleft´s impact on surrounding anatomical structures in children and adolescents with orofacial clefts using cone bean computed tomography (CBCT) ... -
Radiographic imaging in relation to the mandibular third molar: a survey among oral surgeons in Sweden
Cederhag, Josefine; Truedsson, Anna; Alstergren, Per; Shi, Xie-Qi; Hellén-Halme, Kristina (Journal article; Peer reviewed, 2022)Objectives To query the experience of oral surgeons concerning referral routines and preferences for radiographic imaging modality before surgical removal of mandibular third molars and investigate factors that influence ... -
Visibility of anatomical landmarks in the region of the mandibular third molar, a comparison between a low-dose and default protocol of CBCT
Cederhag, Josefine; Iskanderani, Durer; Alstergren, Per; Shi, Xie-Qi; Hellén-Halme, Kristina (Journal article; Peer reviewed, 2023)Objective Optimization of radiographic examinations is essential for radiation protection. The objective of the study was to investigate the clinical applicability of a low-dose CBCT protocol as compared to the default ...