Ville Vuollo

• PhD
• Researcher at University of Oulu

Background Body pain widespreadness may be related to biopsychosocial impact in TMD (temporomandibular disorders) pain patients. Objectives The aim was to assess, by using pain drawings (PDs), the whole‐body pain locations/widespreadness and their association with pain‐related intensity/interference and clinical Axis I diagnoses among Finnish tert...

Objective: To evaluate the prevalence of temporomandibular disorders (TMD) and their association with sociodemographic and psychosocial factors among 33- to 35-year-old Finnish adults in the Northern Finland Birth Cohort 1986 (NFBC1986). Methods: The sample included 1788 NFBC1986 subjects that have been clinically examined in 2018–19. TMD symptoms...

Background Temporomandibular disorders (TMD) are multifactorial musculoskeletal pain and dysfunctions in temporomandibular joints (TMJs) and masticatory muscles. Genetic factors play a role in TMD‐related pain, but only a few genome‐wide association studies (GWAS) have been conducted. Objective The aim of this GWAS was to explore genetic factors a...

Objective: The aim of this study was to find out how the preferred chewing side (PCS) affects facial asymmetry , what kind of factors affect PCS and whether there are differences in facial asymmetry between symmetrical and asymmetrical masticators. Material and methods: The study included 748 subjects (females n = 452, males n = 296) born in 1985-1...

Objective: Northern Finland has a unique distribution of clefts compared to the rest of Europe and Finland. This may reflect the need for orthognathic surgery among Northern Finland’s patient pool. The aim of this study was to compare previously operated patients aged 18 years or older with cleft lip, cleft lip and alveolus, cleft lip and palate, c...

This retrospective study aimed to evaluate the incidence of medication-related osteonecrosis of the jaw (MRONJ) and associated antiresorptive drugs in the Finnish population. All adult patients (aged 18 years and older) who were prescribed with antiresorptive drugs (AR) during 2013-2015 were included in this study. A total of n=58367 patients met t...

Objectives This prospective, population-based cohort study aimed to investigate the development of facial asymmetry up to 6 years of age using a three-dimensional (3D) soft tissue imaging method in a normal population. In addition, the study sought to identify potential predisposing factors to facial asymmetry. Methods A total of 102 newborns were...

Introduction: Facial aesthetics have become one of the most important objectives of orthodontic treatment. The correction of dental arches should be performed in accordance with the face. This study explored the association between occlusal and facial asymmetries in adolescents, particularly emphasizing a Class II subdivision. Methods: Eighty-on...

Purpose The aim of this case–control study was to investigate occlusal characteristics, received orthodontic treatment, oral health-related quality of life (OHRQoL), and satisfaction with dental esthetics in adults operated due to sagittal synostosis. Methods The study group consisted of 40 adults (25 males, 15 females, mean age 27.4 years, range...

The aim of this study was to investigate changes in facial soft tissue asymmetry over time after orthognathic surgery in Class III patients using three-dimensional stereophotogrammetry. The study included 101 patients with a skeletal Class III malocclusion (72 female, 29 male; age range 19–53 years, mean age 28.6 years) who underwent orthognathic s...

Purpose The aim of this study was to investigate the craniofacial and aesthetic characteristics of adult metopic and sagittal craniosynostosis patients operated on in early childhood compared to controls. The goal was to find objective measurements that would correlate with the patient’s subjective self-evaluation of their own cosmetic appearance....

Objective: To examine the prevalence of sagittal relationships, asymmetries and midline shift, and their associations with temporomandibular disorders (TMD) in the Northern Finland Birth Cohort 1966 (NFBC1966). Materials and methods: 1845 subjects participated in a clinical examination at the age of 46. Occlusal measurements were performed using...

Objective To analyze the associations between the widths and forms of dental arches, malocclusions and crowding in middle-aged adult population. Materials and Methods The study material is part of the Northern Finland Birth Cohort 1966 (NFBC1966); the subjects were examined at the age of 46 years. A total of 781 adults with full dentition and no o...

Objective: To resolve how the preferred chewing side (PCS) affects facial asymmetry in twins, whether there are differences between monozygotic (MZ) and dizygotic (DZ) twins, and whether the twins with PCS have more asymmetric faces compared to symmetrically chewing twins. Material and methods: The study included 106 Lithuanian twin pairs of the...

Purpose The goal was to study the effects of early cervical headgear treatment on maxillary and mandibular dental arch area, shape and interarch dimensions. Methods The total study group comprised 67 children aged 7.6 years (standard deviation 0.3) with Angle class II malocclusion collected between 1992 and 1996. The children were randomly divided...

Deformational plagiocephaly (DP) is considered a risk factor for facial asymmetry. This cohort-based, prospective, follow-up study used three-dimensional (3D) stereophotogrammetry to assess the development of facial asymmetry in a normal birth cohort and to investigate the impact of DP on facial asymmetry for the age range of one to three years. Th...

Preterm infants are at higher risk for both symmetrical and asymmetrical head molding. This study involved 3D stereophotogrammetry to assess the cranial growth, molding, and incidence of deformational plagiocephaly (DP) in preterm children compared to term born children. Thirty-four preterm infants and 34 term born controls were enrolled in this st...

Objective: The aim of this study was to assess the stability of Natural Head Position (NHP) over time using the 3dMDface System. Setting and sample population: This was an experimental study. Three-dimensional facial images of 40 students were captured on two different occasions, with an interval of at least two weeks. Materials and methods: T...

The cover image, by Anniina Launonen et al., is based on the Original Article 3D follow‐up study of facial asymmetry after developmental dysplasia of the hip, DOI: 10.1111/ocr.12230.

Objectives: To study, whether there are associations between chewing side preference and other lateralities, whether there is a genetic origin for preferred chewing side (PCS), relations to sex, birth order and orthodontic treatment. Materials and methods: The study included 113 twin pairs, 57 pairs monozygotic, 47 pairs same sex dizygotic and 9...

Objectives To evaluate the change in facial asymmetry among subjects treated for developmental dysplasia of the hip (DDH) from childhood to adolescence. Setting and sample population A total of 39 adolescents (26 females and 13 males), born and treated for DDH during 1997‐2001, participated in the first examination in 2007 (T1; at the age of 8.2)...

The use of 3D imaging of craniofacial soft tissue has increased in medical science, and imaging technology has been developed greatly in recent years. 3D models are quite accurate and with imaging devices based on stereophotogrammetry, capturing the data is a quick and easy operation for the subject. However, analyzing 3D models of the face or head...

A novel scale space approach, SphereSiZer, is proposed for exploring structure in spherical data, that is, directional data on the unit sphere of the three-dimensional Euclidean space. The method finds statistically significant gradients of the smooths of the probability density function underlying the observed data. Bootstrap is used to establish...

Objective Various measurements are used to quantify cranial asymmetry in deformational plagiocephaly (DP), but studies validating cut-off values and comparing the accuracy of such measurements are lacking. In this study, we compared the accuracy of four different measurements in classifying children with and without DP diagnosed by visual assessmen...

Background: Posterior cranial vault distraction (PCVD) is a technique widely used in surgical treatment of craniosynostosis when cranial expansion is required. It has proven to be safe and to allow a significant increase of intracranial volume. Objective: To evaluate increases in intracranial volume as a result of PCVD performed in Oulu Craniofa...

What is known: • The prevalence of deformational plagiocephaly spontaneously decreases after the first months of life. • Limited neck range of motion and infant positional preference increase the risk of deformational plagiocephaly during the first months of life. What is new: • Positional preference at 3 months predicts an unfavorable spontaneous...

Infant skull deformation is analyzed using the distribution of head normal vector directions computed from a 3D image. Severity of flatness and asymmetry are quantified by functionals of the kernel estimate of the normal vector direction density. Using image data from 99 infants and clinical deformation ratings made by experts, our approach is comp...

The 3D photography method allows a more visual presentation of the treatment outcomes with better prediction of the final treatment result. Differences in facial morphology can be evaluated in three dimensions with a 3D photo system. 3D photography is the future of cleft monitoring and represents a tremendous advance in the evolution of record qual...

The aim of this study was to compare facial 3D analysis to DNA testing in twin zygosity determinations. Facial 3D images of 106 pairs of young adult Lithuanian twins were taken with a stereophotogrammetric device (3dMD, Atlanta, Georgia) and zygosity was determined according to similarity of facial form. Statistical pattern recognition methodology...

Deformational plagiocephaly (DP) occurs frequently in otherwise healthy infants. Many infants with DP undergo physiotherapy or helmet therapy, and ample treatment-related research is available. However, the possibility of preventing DP has been left with little attention. We sought to evaluate the effectiveness of intervention in the newborn's envi...