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Research description

Accurate diagnosis is essential to ensure the most effective treatment for patients in dentistry. Among all diagnostic tools the X-ray examination is the method most often for diagnosing hard tissue changes in dental clinics. My research focuses on a variety of topics in the field of oral maxillofacial radiology from physical properties of digital radiographic systems, image processing methods to assessment of image quality and diagnostic performance of different image modalities.

Academic honours, awards and prizes

  • Best clinical lecture award. XV SIDO (Societa Italiana di Ortodonzia) Congress. 1999. “Orthodontic application of color image addition to visualize differences between sequential radiographs”.
  • Basil Bibby Young Investigator Award in Cariology, 2001. International Association of Dental Research.
  • Young researcher award 2005. The foundation of Swedish patent revenue fund for research in preventive odontology.
  • Tandläkare Marie Lundströms resestipendium. 2009. Kvinnliga Tandläkareklubben.
  • Stipendiefonden Sigrid de Verdiers minne. 2009.  Kvinnliga Tandläkareklubben.
  • Stipendium från American Dental Society of Sweden (ADSS) forskningsfond, 2013.

Publications

Neuronal plasticity of trigeminal ganglia in mice following nerve injury
Lynds R, Lyu C, Lyu Gw, Shi Xq, Rosén A, Mustafa K, et al
Journal of pain research 2017;10():349-357

Current status on the application of image processing of digital intraoral radiographs amongst general dental practitioners
Tohidast P, Shi Xq
SWEDISH DENTAL JOURNAL 2016;40(2):113-119

Comparative analysis of upper airway volume with lateral cephalograms and cone-beam computed tomography
Feng X, Li G, Qu Z, Liu L, Näsström K, Shi Xq
American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics 2015;147(2):197-204

Effective radiation dose of a MSCT, two CBCT and one conventional radiography device in the ankle region
Koivisto J, Kiljunen T, Kadesjö N, Shi Xq, Wolff J
Journal of foot and ankle research 2015;8():8-

Evaluation of the effective dose of cone beam computed tomography and multi-slice computed tomography for temporomandibular joint examinations at optimized exposure levels
Kadesjö N, Benchimol D, Falahat B, Näsström K, Shi Xq
Dento maxillo facial radiology 2015;():20150041-

Evaluation of the effective dose of cone beam CT and multislice CT for temporomandibular joint examinations at optimized exposure levels
Kadesjö N, Benchimol D, Falahat B, Näsström K, Shi Xq
Dento maxillo facial radiology 2015;44(8):20150041-

Detection accuracy of condylar defects in cone beam CT images scanned with different resolutions and units
Zhang Zl, Shi Xq, Ma Xc, Li G
DENTOMAXILLOFACIAL RADIOLOGY 2014;43(3):20130414-

Comparison of diagnostic performance on approximal caries detection among Swedish and Chinese senior dental students using analogue and digital radiographs
Minston W, Li G, Wennberg R, Näsström K, Shi Xq
Swedish dental journal 2013;37(2):79-85

Comparison of psychophysical properties of two intraoral digital sensors on low-contrast perceptibility
Shi Xq, Benchimol D, Näsström K
Dento maxillo facial radiology 2013;42(10):20130249-

Detection accuracy of condylar bony defects in Promax 3D cone beam CT images scanned with different protocols
Zhang Zl, Cheng Jg, Li G, Shi Xq, Zhan Jz, Zhang Zy, et al
DENTOMAXILLOFACIAL RADIOLOGY 2013;42(5):20120241-

Detection accuracy of approximal caries by black-and-white and color-coded digital radiographs
Shi Xq, Li G
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY 2009;107(3):433-6

Evaluation of automatic exposure control in a direct digital intraoral system
Benchimol D, Nasstrom K, Shi Xq
DENTOMAXILLOFACIAL RADIOLOGY 2009;38(6):407-12

In vitro quantification of smooth surface caries with DIAGNOdent and the DIAGNOdent pen
Aljehani A, Yang Lf, Shi Xq
ACTA ODONTOLOGICA SCANDINAVICA 2007;65(1):60-3

In vivo reliability of an infrared fluorescence method for quantification of carious lesions in orthodontic patients
Aljehani A, Bamzahim M, Yousif Ma, Shi Xq
Oral health & preventive dentistry 2006;4(2):145-50

Longitudinal quantification of incipient carious lesions in postorthodontic patients using a fluorescence method
Aljehani A, Yousif Ma, Angmar-mansson B, Shi Xq
EUROPEAN JOURNAL OF ORAL SCIENCES 2006;114(5):430-4

Caries risk assessment: methods available to clinicians for caries detection
Tranaeus S, Shi Xq, Angmar-mansson B
COMMUNITY DENTISTRY AND ORAL EPIDEMIOLOGY 2005;33(4):265-73

Clinical performance of DIAGNOdent in the detection of secondary carious lesions
Bamzahim M, Aljehani A, Shi Xq
ACTA ODONTOLOGICA SCANDINAVICA 2005;63(1):26-30

Comparison of the psychophysical properties of various intraoral film and digital systems by means of the perceptibility curve test
Yoshiura K, Welander U, Mcdavid W, Li G, Shi Xq, Nakayama E, et al
DENTOMAXILLOFACIAL RADIOLOGY 2004;33(2):98-102

In vitro quantification of white spot enamel lesions adjacent to fixed orthodontic appliances using quantitative light-induced fluorescence and DIAGNOdent
Aljehani A, Tranaeus S, Forsberg Cm, Angmar-mansson B, Shi Xq
ACTA ODONTOLOGICA SCANDINAVICA 2004;62(6):313-8

Perceptibility curve test for conventional and colour-coded radiographs
Shi Xq, Li G, Yoshiura K, Welander U
DENTOMAXILLOFACIAL RADIOLOGY 2004;33(5):318-22

Secondary caries detection by DIAGNOdent and radiography: a comparative in vitro study
Bamzahim M, Shi Xq, Agmar-mansson B
ACTA ODONTOLOGICA SCANDINAVICA 2004;62(1):61-4

Perceptibility curves for the Digora system
Yoshiura K, Welander U, Mcdavid Wd, Li G, Shi Xq, Kawazu T, et al
DENTOMAXILLOFACIAL RADIOLOGY 2003;32(3):191-7

Perceptibility curve test for digital radiographs before and after correction for attenuation and correction for attenuation and visual response
Li G, Welander U, Yoshiura K, Shi Xq, Mcdavid Wd
DENTOMAXILLOFACIAL RADIOLOGY 2003;32(6):372-8

A color coding method for radiographic images
Shi Xq, Sallstrom P, Welander U
IMAGE AND VISION COMPUTING 2002;20(11):761-767

Detection of approximal caries in digital radiographs before and after correction for attenuation and visual response. An in vitro study
Li G, Yoshiura K, Welander U, Shi Xq, Mcdavid Wd
DENTOMAXILLOFACIAL RADIOLOGY 2002;31(2):113-6

In vivo repeatability and reproducibility of the quantitative light-induced fluorescence method
Tranaeus S, Shi Xq, Lindgren Le, Trollsas K, Angmar-mansson B
CARIES RESEARCH 2002;36(1):3-9

Occlusal caries detection and quantification by DIAGNOdent and Electronic Caries Monitor: in vitro comparison
Bamzahim M, Shi Xq, Angmar-mansson B
ACTA ODONTOLOGICA SCANDINAVICA 2002;60(6):360-4

Comparison of QLF and DIAGNOdent for quantification of smooth surface caries
Shi Xq, Tranaeus S, Angmar-mansson B
CARIES RESEARCH 2001;35(1):21-6

Conventional and predicted Perceptibility Curves for contrast-enhanced direct digital intraoral radiographs
Yoshiura K, Welander U, Shi Xq, Li G, Kawazu T, Tatsumi M, et al
DENTOMAXILLOFACIAL RADIOLOGY 2001;30(4):219-25

Eruption pattern of autotransplanted premolars visualized by radiographic color-coding
Paulsen Hu, Shi Xq, Welander U, Huggare J, Scheutz F
AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS 2001;119(4):338-45

Healon GV in non-surgical treatment of periodontitis.
Norhagen Ge, Engstrom Pe, Tronje G, Welander U, Shi Xq, Larsson A
JOURNAL OF DENTAL RESEARCH 2001;80(4):1213-1213

Healon GV in surgical treatment of periodontitis.
Engstrom Pe, Norhagen Ge, Tronje G, Welander U, Shi Xq, Larsson A
JOURNAL OF DENTAL RESEARCH 2001;80(4):1213-1213

The effect of hyaluronan on bone and soft tissue and immune response in wound healing
Engstrom Pe, Shi Xq, Tronje G, Larsson A, Welander U, Frithiof L, et al
JOURNAL OF PERIODONTOLOGY 2001;72(9):1192-200

Tuned-aperture computed tomography for detection of occlusal caries
Shi Xq, Han P, Welander U, Angmar-mansson B
DENTOMAXILLOFACIAL RADIOLOGY 2001;30(1):45-9

Validation of DIAGNOdent for quantification of smooth-surface caries: an in vitro study
Shi Xq, Tranaeus S, Angmar-mansson B
ACTA ODONTOLOGICA SCANDINAVICA 2001;59(2):74-8

Occlusal caries detection with KaVo DIAGNOdent and radiography: An in vitro comparison
Shi Xq, Welander U, Angmar-mansson B
CARIES RESEARCH 2000;34(2):151-8

Occlusal caries detection with KaVo DIAGNOdent compared with bite-wing radiography.
Shi Xq, Welander U, Angmar-mansson B
JOURNAL OF DENTAL RESEARCH 2000;79(5):1297-1297

A simplified method to obtain perceptibility curves for direct dental digital radiography
Stamatakis Hc, Yoshiura K, Shi Xq, Welander U, Mcdavid Wd
DENTOMAXILLOFACIAL RADIOLOGY 1999;28(2):112-5

Comparison of observer reliability in assessing alveolar bone changes from color-coded with subtraction radiographs
Shi Xq, Eklund I, Tronje G, Welander U, Stamatakis Hc, Engstrom Pe, et al
DENTOMAXILLOFACIAL RADIOLOGY 1999;28(1):31-6

Orthodontic application of color image addition to visualize differences between sequential radiographs
Papika S, Paulsen Hu, Shi Xq, Welander U, Linder-aronson S
AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS 1999;115(5):488-93

Physical evaluation of a system for direct digital intra-oral radiography based on a charge-coupled device
Yoshiura K, Stamatakis Hc, Welander U, Mcdavid Wd, Shi Xq, Ban S, et al
DENTOMAXILLOFACIAL RADIOLOGY 1999;28(5):277-83

Prediction of Perceptibility Curves of direct digital intraoral radiographic systems
Yoshiura K, Stamatakis Hc, Welander U, Mcdavid Wd, Shi Xq, Ban S, et al
DENTOMAXILLOFACIAL RADIOLOGY 1999;28(4):224-31

The perceptibility curve test applied to direct digital dental radiography
Yoshiura K, Stamatakis H, Shi Xq, Welander U, Mcdavid Wd, Kristoffersen J, et al
DENTOMAXILLOFACIAL RADIOLOGY 1998;27(3):131-5

A sensitometric comparison of four dental X-ray films and their diagnostic accuracy
Svenson B, Welander U, Shi Xq, Stamatakis H, Tronje G
DENTOMAXILLOFACIAL RADIOLOGY 1997;26(4):230-5

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