scholarly journals Conventional Vs Digital Impressions: Acceptability, Treatment Comfort and Stress Among Young Orthodontic Patients

2018 ◽  
Vol 12 (1) ◽  
pp. 118-124 ◽  
Author(s):  
Alessandro Mangano ◽  
Matteo Beretta ◽  
Giuseppe Luongo ◽  
Carlo Mangano ◽  
Francesco Mangano

Objective: The objective of the present study was to compare patients’ acceptability, comfort and stress with conventional and digital impressions. Materials and Methods: Thirty young orthodontic patients (15 males and 15 females) who had no previous experience of impressions were enrolled in this study. Conventional impressions for orthodontic study models of the dental arches were taken using an alginate impression material (Hydrogum®, Zhermack Spa, Badia Polesine, Rovigo, Italy). Fifteen days later, digital impressions of both arches were acquired using an intraoral scanner (CS3600®, Carestream Dental, Rochester, NY, USA). Immediately after impression taking, patients’ acceptability, comfort and stress were measured using two questionnaires and the State anxiety scale. Results: Data showed no difference in terms of anxiety and stress; however, patients preferred the use of digital impressions systems instead of conventional impression techniques. Alginate impressions resulted as fast as digital impressions. Conclusions: Digital impressions resulted the most accepted and comfortable impression technique in young orthodontic patients, when compared to conventional techniques.

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Bowen Ma ◽  
Xinxin Yue ◽  
Yujie Sun ◽  
Lingyan Peng ◽  
Wei Geng

Abstract Background To compare the accuracy of photogrammetry, intraoral scanning and conventional impression techniques for complete-arch implant rehabilitation. Methods A master cast containing 6 implant abutment replicas was fabricated. Group PG: digital impressions were taken 10 times using a photogrammetry system; Group IOS: intraoral scanning was performed to fabricate 10 digital impressions; Group CNV: splinted open-tray impression technique was used to fabricate 10 definitive casts. The master cast and conventional definitive casts were digitized with a laboratory reference scanner. For all STL files obtained, scan bodies were converted to implant abutment replicas using a digital library. The accuracy of a digitizer was defined by 2 main parameters, trueness and precision. "Trueness" was used to describe the deviation between test files and reference file, and "precision" was used to describe the closeness between test files. Then, the trueness and precision of three impression techniques were evaluated and statistically compared (α = 0.05). Results The median trueness was 24.45, 43.45 and 28.70 μm for group PG, IOS and CNV; Group PG gave more accurate trueness than group IOS (P < 0.001) and group CNV (P = 0.033), group CNV showed more accurate trueness than group IOS (P = 0.033). The median precision was 2.00, 36.00 and 29.40 μm for group PG, IOS and CNV; Group PG gave more accurate precision than group IOS (P < 0.001) and group CNV (P < 0.001), group CNV showed more accurate precision than IOS (P = 0.002). Conclusions For complete-arch implant rehabilitation, the photogrammetry system showed the best accuracy of all the impression techniques evaluated, followed by the conventional impression technique, and the intraoral scanner provided the least accuracy.


Author(s):  
Alexander Schmidt ◽  
Leona Klussmann ◽  
Maximiliane A. Schlenz ◽  
Bernd Wöstmann

Abstract Objectives Due to the partly strongly differing results in the literature, the aim of the present study was to investigate a possible deformation of the mandible during mouth opening using an intraoral scanner (IOS) and a conventional impression for comparison with a reference aid. Materials and methods Four steel spheres were reversibly luted in the mandibular (n = 50) with a metallic reference aid at maximum mouth opening (MMO). Two digital impressions (Trios3), at MMO and at slightly mouth opening SMO and a conventional impression (Impregum), were taken as the measuring accuracy of the reference structure was already known. Difference between MMO-SMO for digital impressions and deviations between digital and conventional (SMO) were calculated. Furthermore, the angle between the normal vectors of two constructed planes was measured. Statistical analysis was performed with SPSS25. Results Deviations for linear distances ranged from −1 ± 3 μm up to 17 ± 78 μm (digital impressions, MMO-SMO), from 19 ± 16 μm up to 132 ± 90 μm (digital impressions, SMO), and from 28 ± 17 μm up to 60 ± 52 μm (conventional impressions, SMO). There were no significant differences for digital impressions (MMO-SMO), and there were significant differences between the conventional and digital impressions at SMO. Conclusions Based on the results of the present study, no mandibular deformation could be detected during mouth opening with regard to the digital impressions. The results were rather within the measuring tolerance of the intraoral scanner. Clinical relevance Based on the present study, no deformation of the mandibular during mouth opening could be observed at the level previously assumed. Therewith related, dental techniques related to a possible mandibular deformation therefore should be reconsidered.


2020 ◽  
Author(s):  
CAIO CÉSAR DIAS Resende ◽  
Tiago Augusto Quirino Barbosa ◽  
Guilherme Faria Moura ◽  
Lucas Nascimento Tavares ◽  
Fabio Antonio Piola Rizzante ◽  
...  

Abstract Background: Different sizes of arch could influence in digital methods to obtaining dental impressions and 3D models. The purpose of this study was to evaluate and compare the accuracy of two intra-oral scanners and conventional impression methods for the fabrication of working casts. Methods: Conventional impressions of a reference cast were obtained. Digital impressions were obtained with two intra-oral scanners: Cerec Omnicam (CO) and 3Shape Trios (ST). The obtained digital stereolithographic casts were printed on Zenith D 3D printer. The reference cast and fabricated casts were scanned with a bench top scanner and saved in STL format. All STL records were analyzed in specific software: complete arch (CA), partial arch (PA) and prepared teeth area (PT). One-way and two-way analyses of variance were performed to compare the accuracy, followed by the Tukey test. Results: No significant intergroup differences in trueness and precision were observed for the two intra-oral scanners. 3D printed casts had the lowest trueness when complete arch was analyzed and differed statistically from the stone cast. For complete arch precision, stone cast presented better results, however statistically different only from the CO. Conclusions: The two intraoral scanner systems had similar accuracy. Stone casts had higher trueness than 3D printed casts for CA. For CA precision, 3D printed cast presented similar results to the stone cast.


2017 ◽  
Vol 14 (2) ◽  
pp. 1820
Author(s):  
Gül Güneş Çelik ◽  
İsmet Eşer

Anxiety is a vague concern and discomfort that a person feels about himself because of a threat to the person's value system or security pattern. It is caused by not being able to interact fully with the environment because of the lack of sensory information and the misinterpretation of the information received through emotions. Anxiety, which has an important effect in daily life, also has important effects on education life. Stress, which shows similar features with anxiety, is an important issue in education because it has potential to inhibit learning and performance. In order to increase learning outcomes and ensure critical thinking, educators should define students’ level of anxiety and minimize it. Touching is a simple skill that can be applied by educators during the clinic training without the need for a course. Positive and appropriate contacts of the educators make them feel good to the students and students think they are important. Studies show that students are anxious before skill training and anxiety reduces the success and performance of them. The aim of this study was to determine the effect of touching on anxiety and the success of students during skill training of intravenous catheterization. The research was conducted in the skill training laboratory of a nursing faculty as using the quasi-experimental method with control group through the pre and post-test between December 2016 and January 2016. The sample was constructed from the experimental group (n=65) and the control group (n=65) as 130 people and single blinding was done. The experimental group of students’ shoulders, arms or hands were touched by educators during skill training of intravenous catheterization. In the collection of the data, The Personal Information Form, The Intravenous Catheterization Skill Practice Checklist, The State-Trait Anxiety Scale and intravenous catheterization training model were used. The mean age of the experimental group was 20.36 ± 0.76 years and the mean age of the control group was 20.20 ± 0.75 years. 89.2% of the experimental group and 93.8% of the control group consisted of women. As the personality trait, 47.7% of the experimental group and 36.9% of the control group were defined themselves as calm. It was determined that the State Anxiety Scale score of the control and experiment group decreased after skill training of intravenous catheterization but there was a significant difference between the State Anxiety Scale Score of pre and post-skill training only in the experimental group. It was detected that the success of skill was higher in the experimental group.In line with these findings, it is recommended that educators should observe anxiety of the students and they should apply simple touching to students who has high pre-skill anxiety. Extended English abstract is in the end of PDF (TURKISH) file. ÖzetAnksiyete kişinin değer sistemi ya da güvenlik örüntüsüne bir tehditten dolayı yaşanan, bireyin kendine yönelik hissettiği belirsiz bir endişe ve huzursuzluk duygusudur. Duyusal eksiklik ve duygular aracılığıyla alınan bilgilerin yanlış yorumlanmasından dolayı çevreyle tam etkileşim kuramamaktan kaynaklanır. Günlük hayatta önemli etkisi olan anksiyetenin, eğitim hayatında da önemli etkileri bulunmaktadır. Anksiyete ile benzer özellikler gösteren stres, öğrenmeyi ve performansı engelleme potansiyeline sahip olduğu için eğitimde önemli bir konudur. Öğrenme çıktılarını artırmak ve kritik düşünmeyi sağlamak için eğiticiler öğrencilerin kaygı düzeyini tanımlanmalı ve en aza indirmelidir. Dokunma klinik eğitimler sırasında eğiticiler tarafından bir kursa ihtiyaç duyulmadan uygulanabilen basit bir beceridir. Eğiticilerin pozitif ve uygun teması öğrencilere kendini iyi hissettirir ve öğrenciler önemli olduklarını düşünürler.Yapılan çalışmalar öğrencilerin beceri uygulamalarından önce anksiyete yaşadığını ve anksiyetenin öğrencilerin başarı ve performansını azalttığını göstermektedir. Bu araştırma; dokunmanın intravenöz kateterizasyon beceri uygulaması sırasında öğrencilerin anksiyetesine ve uygulama başarısına etkisini belirlemek amacıyla yapılmıştır. Araştırma Aralık 2016-Ocak 2017 tarihleri arasında kontrol gruplu ön test-son test yarı deneysel model kullanılarak bir hemşirelik fakültesinin beceri laboratuvarında yürütüldü. Örneklem, uygulama grubu (n=65) ve kontrol grubundan (n=65) 130 kişi olarak oluşturuldu ve tek körleme yapıldı. Beceri uygulaması sırasında uygulama grubu öğrencilerinin omuz, kol veya eline temasta bulunuldu. Verilerin toplanmasında; Kişisel Bilgi Formu, İntravenöz Kateterizasyon Beceri Uygulama Kontrol Listesi, Durumluk–Sürekli Kaygı Ölçeği, intravenöz kateterizasyon kol maketi kullanıldı. Uygulama grubunun yaş ortalaması 20.36±0.76, kontrol grubunun yaş ortalaması 20.20±0.75’di. Uygulama grubunun %89.2’si, kontrol grubunun %93.8’i kadınlardan oluşmaktaydı. Kişilik özelliği olarak uygulama grubunun %47.7’si ve kontrol grubunun %36.9’u kendini sakin olarak tanımladı. Uygulama ve kontrol grubunun beceri eğitimi sonrası durumluk kaygı puanın azaldığı fakat sadece uygulama grubunda beceri öncesi ve sonrası kaygı puanı arasında anlamlı fark olduğu saptandı. Beceri başarısının uygulama grubunda daha yüksek olduğu tespit edildi.Bu bulgular doğrultusunda eğiticilerin, öğrencilerin anksiyetesini gözlemlemesi ve beceri öncesi anksiyetesi yüksek olan öğrencilere basit dokunma uygulanması önerilmektedir.


2022 ◽  
pp. 1-6
Author(s):  
Li-Wen Wang ◽  
Jian-Feng Liu ◽  
Wen-Peng Xie ◽  
Qiang Chen ◽  
Hua Cao

Abstract Purpose: This study explored the effects of condition notification based on virtual reality technology on the anxiety levels of parents of children with simple CHD. Methods: The subjects of the study were the parents of 60 children with simple CHD who were treated in our centre. The state anxiety scale was used to assess the anxiety status of the parents of the children before and after the condition notification in different ways (based on virtual reality explanations and written explanations). Results: In this study, a total of 55 parents of children with CHD successfully completed the survey. At the time of admission, there was no significant difference in the state anxiety scale scores of the parents between the two groups. The anxiety status of the virtual reality group was relieved after the condition notification assisted by virtual reality technology, and there was a significant difference compared with the control group. Conclusion: Condition notification based on virtual reality technology can effectively alleviate the anxiety of parents of children with simple CHD, which is worthy of clinical application.


2004 ◽  
Vol 95 (2) ◽  
pp. 657-658 ◽  
Author(s):  
Gary Elkins ◽  
M. Hasan Rajab ◽  
Joel Marcus ◽  
Raymond Staniunas

To assess prevalence of anxiety 36 consecutive patients undergoing colorectal surgery with general anesthesia were interviewed on the day of surgery and completed the State-Trait Anxiety Inventory. Postsurgical ratings of pain and anxiety were obtained within 24 hours after surgery. Analysis indicated that 29 scored moderate or higher on the State Anxiety scale prior to surgery. The correlations for scores on presurgical Trait Anxiety with postsurgical pain and Trait Anxiety scores were significant ( p<.01) but not that for pre- and postsurgical State Anxiety


2020 ◽  
Vol 9 (3) ◽  
pp. 688 ◽  
Author(s):  
Alexander Schmidt ◽  
Leona Klussmann ◽  
Bernd Wöstmann ◽  
Maximiliane Amelie Schlenz

The aim of this clinical study was to update the available data in the literature regarding the transfer accuracy (trueness/precision) of four current intraoral scanners (IOS) equipped with the latest software versions and to compare these data with conventional impressions (CVI). A metallic reference aid served as a reference dataset. Four digital impressions (Trios3Cart, Trios3Pod, Trios4Pod, and Primescan) and one CVI were investigated in five patients. Scan data were analyzed using three-dimensional analysis software and conventional models using a coordinate measurement machine. The transfer accuracy between the reference aid and the impression methods were compared. Differences with p < 0.05 were considered to be statistically significant. Overall, mean ± standard deviation (SD) transfer accuracy ranged from 24.6 ± 17.7 µm (CVI) to 204.5 ± 182.1 µm (Trios3Pod). The Primescan yielded the lowest deviation for digital impressions (33.8 ± 31.5 µm), followed by Trios4Pod (65.2 ± 52.9 µm), Trios3Cart (84.7 ± 120.3 µm), and Trios3Pod. Within the limitations of this study, current IOS equipped with the latest software versions demonstrated less deviation for short-span distances compared with the conventional impression technique. However, for long-span distances, the conventional impression technique provided the lowest deviation. Overall, currently available IOS systems demonstrated improvement regarding transfer accuracy of full-arch scans in patients.


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