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MUEP: Recent submissions
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Teeth movement 12 years after orthodontic treatment with and without ... Abdulraheem, Salem; Schutz-Fransson, Ulrike; Bjerklin, Krister
Journal article in European Journal of Orthodontics; : Oxford University Press (2019)Journal article 
English abstract: AIMS: To identify if lower incisor movements after orthodontic treatment are due to the relapse of the orthodontic treatment or due to natural growth. SUBJECTS AND METHODS: The subjects consisted of 92 patients who have had orthodontic treatment, divided into three groups, group 1: 38 individuals had no retainer in the lower jaw. Group 2: 24 individuals had a retainer 0.028 inch, a spring hard wire bonded to the mandibular canines only. Group 3: 30 individuals had a 0.0195-inch Twist-Flex wire, bonded to all mandibular incisors and canines. Study models before orthodontic treatment (T0), immediately after orthodontic treatment (T1), 6 years after orthodontic treatment (T2), and 12 years after orthodontic treatment (T3) were used for the measurements. The wires in groups 2 and 3 were removed after mean 2.6 years (SD 1.49). Little Irregularity Index (LII), inter-canine distance, available mandibular anterior space, and number of crowded incisors were registered. A Tooth Displacement Index (TDI) was developed to measure the tooth displacement directions at T0 and T3. RESULTS: The LII showed equal values before treatment (T0) and at the follow-up registrations (T2 and T3). But about 25 per cent of the tooth displacements at T2 and T3 did not exist before treatment, at T0. This indicates usual growth changes and not relapse of the orthodontic treatment. CONCLUSION: As about 25 per cent of the displaced incisors can be considered as an effect of natural growth, not a relapse of the orthodontic treatment, it is valuable to use a displacement index in combination with other variables for investigations of stability after orthodontic treatment. Importance of the present study is that it is possible to differ between relapse and usual growth changes. -
The importance of supportive periodontal therapy for molars treated w... Nibali, Luigi; Akcali, Aliye; Rüdiger, Stefan G
Journal article in Journal of Clinical Periodontology; : Wiley (2019)Journal article
English abstract: BACKGROUND AND OBJECTIVE: Degree III furcation involvement (FI) represents a risk of molar tooth loss. A limited number of studies have assessed the survival of molars with degree III FI treated with tunnelling procedures. AIMS: The aim of the present study was to assess periodontal disease progression and tooth loss in a cohort of patients with degree III FI treated with tunnelling by two periodontists in a private practice setting in the UK and in a hospital setting in Sweden. MATERIALS AND METHODS: A retrospective study was conducted on 102 consecutive surgically-created tunnelled molars in 62 periodontitis patients and followed up at least 5 years later (average 7 years and 9 months follow-up). RESULTS: Overall tooth loss for tunnelled molars was 29.4%. Multivariate analysis revealed statistically significant associations with tooth loss for 'irregular supportive periodontal therapy (SPT)' (p=0.039) and age (p=0.037). Tooth loss occurred only in the Swedish sample, not undergoing regular SPT. CONCLUSION: A high rate of tooth loss was observed following tunnelling surgery, mainly in patients not undergoing regular supportive therapy. Clinical studies should be carried out to compare tunnelling with other treatment options for advanced furcation involvement in patients on SPT. This article is protected by copyright. All rights reserved. -
Intraosseous Temperature Change during Installation of Dental Implant... 
Stocchero, Michele; Jinno, Yohei; Toia, Marco; Ahmad, Marianne; Papia, Evaggelia; Yamaguchi, Satoshi; Becktor, Jonas P
Journal article in Journal of Clinical Medicine;8 : MDPI (2019)Journal article
English abstract: BACKGROUND: The intraosseous temperature during implant installation has never been evaluated in an in vivo controlled setup. The aims were to investigate the influence of a drilling protocol and implant surface on the intraosseous temperature during implant installation, to evaluate the influence of temperature increase on osseointegration and to calculate the heat distribution in cortical bone. METHODS: Forty Branemark implants were installed into the metatarsal bone of Finnish Dorset crossbred sheep according to two different drilling protocols (undersized/non-undersized) and two surfaces (moderately rough/turned). The intraosseous temperature was recorded, and Finite Element Model (FEM) was generated to understand the thermal behavior. Non-decalcified histology was carried out after five weeks of healing. The following osseointegration parameters were calculated: Bone-to-implant contact (BIC), Bone Area Fraction Occupancy (BAFO), and Bone Area Fraction Occupancy up to 1.5 mm (BA1.5). A multiple regression model was used to identify the influencing variables on the histomorphometric parameters. RESULTS: The temperature was affected by the drilling protocol, while no influence was demonstrated by the implant surface. BIC was positively influenced by the undersized drilling protocol and rough surface, BAFO was negatively influenced by the temperature rise, and BA1.5 was negatively influenced by the undersized drilling protocol. FEM showed that the temperature at the implant interface might exceed the limit for bone necrosis. CONCLUSION: The intraosseous temperature is greatly increased by an undersized drilling protocol but not from the implant surface. The temperature increase negatively affects the bone healing in the proximity of the implant. The undersized drilling protocol for Branemark implant systems increases the amount of bone at the interface, but it negatively impacts the bone far from the implant. 
jcm-08-01198.pdf
(2.384Mb)
https://www.mdpi.com/2077-0383/8/8/1198
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Improvement of hand sensibility resulting from application of anaesth... Saleem, Shifa; Rosén, Birgitta; Engblom, Johan; Björkman, Anders Malmö University. Biofilms - Research Center for Biointerfaces
Journal article in Hand therapy;4 : Sage (2015)Journal article
English abstract: Introduction: A local anaesthetic cream, EMLA (R), applied temporarily to the forearm can improve sensory functions in the hands, both in healthy individuals and in patients with nerve injury. The treatment concept is an example of guided plasticity where the dynamic capacity of the central nervous system is used for therapeutic purposes. However, the optimal dose and duration of the anaesthetic cream is not known and this is addressed here. Methods: Sixty healthy volunteers participated in this experimental study. They were randomised to one of six groups of 10 and received either 10 g or 20 g of EMLA (R) on the volar part of the forearm for either 60, 90 or 120 min, respectively. Outcome measures were touch thresholds and discriminative touch in digits II and V. Results: There was a statistically significant improvement in touch threshold as well as discriminative touch in all six groups. However, there were no statistically significant differences between the six different dose and duration combinations. Conclusions: It is concluded that 10 g of EMLA (R) applied to the volar part of the forearm for 60 min may be adequate to induce improved hand sensibility. -
Visitors' experiences of public and private dental care in Sweden in ...
Pälvärinne, Raimo; Birkhed, Dowen; Forsberg, Birger; Widström, Eeva
Journal article in BDJ Open;12 : Nature (2019)Journal article
English abstract: Aim: The aim was to compare adult patients' experiences of public and private dental care in Sweden over time from the ages of 50 and 70 years, between 1992 and 2012. Materials and methods: Data on visiting patterns, oral health, fees and satisfaction were obtained from a questionnaire study every 5 years in 1992-2012 and analysed by using the Chi-square test and logistic regression. In the present study, the answers given by 6083 respondents in 1992 and 5220 in 2012 were included. Results: Of the 50-year olds, 73.5% had visited the private sector and 26.5% the public sector. In 1992, patients in the public dental service (PDS) had visited their dentists less frequently and experienced having a slightly poorer dental status compared with private patients. After 20 years (2012), the distribution of patients between the two sectors was almost the same (71.4% and 28.8%) and the differences in visiting pattern and dental health persisted. During the study period, 21.6% of the patients changed treatment sector. A small proportion of patients had high treatment costs. A larger proportion of the private sector visitors than the PDS visitors were consistently satisfied with the dental care they had received. Conclusions: As a whole, most adult patients in Sweden were satisfied with their dental care at both public and private clinics. Note: BDJ Open
s41405-019-0020-1.pdf
(3.323Mb)
https://www.nature.com/articles/s41405-019-0020-1
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