Hastabaşı CAD/CAM sistemi ile üretilen posterior tam seramik kronların marjinal ve internal adaptasyonlarının değerlendirilmesi: in vitro çalışma

Yıl 2018, , 1 - 8, 27.07.2017

Merve Bankoğlu Güngör , Aylin Doğan , Bilge Turhan Bal Seçil Karakoca Nemli

https://doi.org/10.17214/gaziaot.306165

Öz

Amaç: Hastabaşı bilgisayar destekli tasarım / bilgisayar
destekli üretim (CAD/CAM) teknolojisindeki ve materyal bilimindeki ilerlemeler,
günümüzde anterior ve posterior dişler için estetik restorasyonların yapımını
olanaklı hale getirmiştir. Ancak, üretilen yeni CAD/CAM materyallerinin
marjinal ve internal adaptasyonları ile ilgili yeterince veri yoktur. Bu çalışmanın
amacı; hastabaşı CAD/CAM sistemi ile üretilen posterior tam seramik
restorasyonların marjinal ve internal adaptasyonlarını değerlendirmektir.

Gereç ve Yöntem: Yapay bir alt sol birinci büyükazı dişi standart diş
kesimi kurallarıyla prepare edildi ve prepare edilen dişlerden standart
modeller oluşturuldu. Tam seramik restorasyonlar
(n=10), yedi farklı CAD/CAM materyalinden üretildi (IPS e.max CAD, Lava
Ultimate, Incoris TZI, Incoris ZI, Vita Suprinity, Vita
Enamic, ve GC Cerasmart). Örneklere ait marjinal ve internal adaptasyonlar;
ince bir bistüri yardımıyla kesilen silikon replikalardan ölçüldü. Day
materyali ve restorasyonun iç yüzeyi arasındaki boşluğu temsil eden silikon
replika 50× büyütmeye sahip ışık mikroskobunda dijital kamera ile incelendi. Her
bukkal-lingual bölümden dört referans noktası ve her mezial-distal bölümden
sekiz referans noktası belirlenerek incelendi. Sonuçlar iki yönlü varyans
analizi ve Tukey HSD testi ile değerlendirildi (α=0.05).

Bulgular: Marjinal-internal
alanlarda görülen değerler genellikle marjinal alanlardaki değerlerden yüksek
bulundu. Materyaller arasında anlamlı farklılıklar bulundu. İstatistik analiz sonucunda;
materyal tipi ve referans noktasının lokalizasyonu arasında interaksiyon
bulundu (p<0.05). En düşük değerler aksiyel alanlarda ve en
yüksek değerler ise oklüzal alanlarda gözlendi.

Sonuç: Bütün materyaller klinik olarak kabul edilebilir derecede
marjinal ve internal uyumsuzluk gösterdi.

Anahtar Kelimeler

Bilgisayar yardımlı tasarım, dental marjinal adaptasyon, seramikler

Evaluation of marginal and internal adaptations of posterior all-ceramic crowns fabricated with chair-side CAD/CAM system: an in vitro study

Öz

Objective: Advances in chair-side Computer-Aided
Design / Computer-Aided Manufacturing (CAD/CAM) technology and materials
science currently enable the fabrication of highly esthetic restorations for
the anterior and posterior teeth. However, there is a lack of evidence
regarding the marginal and internal adaptations of new CAD/CAM materials. The objective of this study
was to evaluate the marginal and internal adaptations of posterior
all-ceramic restorations fabricated from contemporary restorative materials with
chair-side CAD/CAM system.

Materials and Method: An artificial mandibular left first molar tooth was prepared according
to standard tooth preparation procedures, and standard models of the prepared
teeth were obtained. All-ceramic restorations (n=10) were
fabricated from seven different CAD/CAM blocks (IPS e.max CAD, Lava Ultimate,
Incoris TZI, Incoris ZI, Vita Suprinity, Vita Enamic, and GC Cerasmart). The
marginal and internal adaptations were measured with silicone replicas, which
were sectioned with a thin lancet. The discrepancy between the die and the
inner surface of the restoration was examined at 50× magnification by using a
light microscope with digital camera. Four reference points were examined at
each buccal-lingual section and eight reference
points were examined at each mesial-distal section. The results were evaluated
by two-way analysis of variance (ANOVA) followed by Tukey HSD test (α=0.05).

Results: The values obtained from
marginal-internal areas were generally greater than those in the marginal
areas. Significant differences were found between the materials. The
statistical analysis revealed that there was an interaction between the
material type and the location of the reference points (p<0.05); the lowest
values were observed in axial areas, and the highest values were observed in
occlusal areas.

Conclusion: All materials showed low marginal and internal discrepancies which were
considered clinically acceptable.

Anahtar Kelimeler

Ceramics, computer-aided design, dental marginal adaptation

Kaynakça

• Mously HA, Finkelman M, Zandparsa R, Hirayama H. Marginal and internal adaptation of ceramic crown restorations fabricated with CAD/CAM technology and the heat-press technique. J Prosthet Dent 2014;112:249-56.
• Karlsson S. The fit of Procera titanium crowns. An in vitro and clinical study. Acta Odontol Scand 1993;51:129-34.
• Souza RO, Ozcan M, Pavanelli CA, Buso L, Lombardo GH, Michida SM, et al. Marginal and internal discrepancies related to margin design of ceramic crowns fabricated by a CAD/CAM system. J Prosthodont 2012;21:94-100.
• Rudolph H, Luthardt RG, Walter MH. Computer-aided analysis of the influence of digitizing and surfacing on the accuracy in dental CAD/CAM technology. Comput Biol Med 2007;37:579-87.
• Renne W, McGill ST, Forshee KV, DeFee MR, Mennito AS. Predicting marginal fit of CAD/CAM crowns based on the presence or absence of common preparation errors. J Prosthet Dent 2012;108:310-5.
• Martins LM, Lorenzoni FC, Melo AO, Silva LM, Oliveira JL, Oliveira PC, et al. Internal fit of two all-ceramic systems and metal-ceramic crowns. J Appl Oral Sci 2012;20:235-40.
• Lins L, Bemfica V, Queiroz C, Canabarro A. In vitro evaluation of the internal and marginal misfit of CAD/CAM zirconia copings. J Prosthet Dent 2015;113:205-11.
• Pradies G, Zarauz C, Valverde A, Ferreiroa A, Martínez-Rus F. Clinical evaluation comparing the fit of all-ceramic crowns obtained from silicone and digital intraoral impressions based on wavefront sampling technology. J Dent 2015;43:201-8.
• Wettstein F, Sailer I, Roos M, Hämmerle CH. Clinical study of the internal gaps of zirconia and metal frameworks for fixed partial dentures. Eur J Oral Sci 2008;116:272-9.
• Contrepois M, Soenen A, Bartala M, Laviole O. Marginal adaptation of ceramic crowns: a systematic review. J Prosthet Dent 2013;110:447-54.
• Kokubo Y, Tsumita M, Kano T, Sakurai S, Fukushima S. Clinical marginal and internal gaps of zirconia all-ceramic crowns. J Prosthodont Res 2011;55:40-3.
• Gracis S, Thompson VP, Ferencz JL, Silva NR, Bonfente EA. A new classification system for all-ceramic and ceramic-like restorative materials. Int J Prosthodont 2015;28:227-35.
• Nakamura T, Dei N, Kojima T, Wakabayashi K. Marginal and internal fit of Cerec 3 CAD/CAM all-ceramic crowns. Int J Prosthodont 2003;16:244-8.
• Nakamura T, Tanaka H, Kinuta S, Akao T, Okamoto K, Wakabayashi K, et al. In vitro study on marginal and internal fit of CAD/CAM all-ceramic crowns. Dent Mater J 2005;24:456-9.
• Iwai T, Komine F, Kobayashi K, Saito A, Matsumura H. Influence of convergence angle and cement space on adaptation of zirconium dioxide ceramic copings. Acta Odontol Scand 2008;66:214-8.
• Yildiz C, Vanlioglu BA, Evren B, Uludamar A, Ozkan YK. Marginal-internal adaptation and fracture resistance of CAD/CAM crown restorations. Dent Mater J 2013;32:42-7.
• Tamac E, Toksavul S, Toman M. Clinical marginal and internal adaptation of CAD/CAM milling, laser sintering, and cast metal ceramic crowns. J Prosthet Dent 2014;112:909-13.
• Weaver JD, Johnson GH, Bales DJ. Marginal adaptation of castable ceramic crowns. J Prosthet Dent 1991;66:747-53.
• Baig MR, Tan KB, Nicholls JI. Evaluation of the marginal fit of a zirconia ceramic computer-aided machined (CAM) crown system. J Prosthet Dent 2010;104:216-27.
• Anadioti E, Aquilino SA, Gratton DG, Holloway JA, Denry IL, Thomas GW, et al. Internal fit of pressed and computer-aided design/computer-aided manufacturing ceramic crowns made from digital and conventional impressions. J Prosthet Dent 2015;113:304-9.
• Sakrana AA. In vitro evaluation of the marginal and internal discrepancies of different esthetic restorations. J Appl Oral Sci 2013;21:575-80.
• Ng J, Ruse D, Wyatt C. A comparison of the marginal fit of crowns fabricated with digital and conventional methods. J Prosthet Dent 2014;112:555-60.
• Awada A, Nathanson D. Mechanical properties of resin-ceramic CAD/CAM restorative materials. J Prosthet Dent 2015;114:587-93.
• Syrek A, Reich G, Ranftl D, Klein C, Cerny B, Brodesser J. Clinical evaluation of all-ceramic crowns fabricated from intraoral digital impressions based on the principle of active wavefront sampling. J Dent 2010;38:553-9.
• Beuer F, Schweiger J, Edelhoff D. Digital dentistry: an overview of recent developments for CAD/CAM generated restorations. Br Dent J 2008;204:505-11.
• Nedelcu RG, Persson AS. Scanning accuracy and precision in 4 intraoral scanners: an in vitro comparison based on 3-dimensional analysis. J Prosthet Dent 2014;112:1461-71.
• Patzelt SB, Emmanouilidi A, Stampf S, Strub JR, Att W. Accuracy of full-arch scans using intraoral scanners. Clin Oral Investig 2014;18:1687-94.
• Reich S, Uhlen S, Gozdowski S, Lohbauer U. Measurement of cement thickness under lithium disilicate crowns using an impression material technique. Clin Oral Investig 2011;15:521-6.
• Acar Ö. Farklı yüzey hazırlıklarının CAD/CAM hibrit seramiğin kompozit rezin ile tamirine etkisi. Acta Odontol Turc 2016;33:121-5.
• Beuer F, Aggstaller H, Richter J, Edelhoff D, Gernet W. Influence of preparation angle on marginal and internal fit of CAD/CAM-fabricated zirconia crown copings. Quintessence Int 2009;40:243-50.
• Bindl A, Mormann WH. Marginal and internal fit of all-ceramic CAD/CAM crown-copings on chamfer preparations. J Oral Rehabil 2005;32:441-7.
• Re D, Cerutti F, Augusti G, Cerutti A, Augusti D. Comparison of marginal fit of Lava CAD/CAM crown-copings with two finish lines. Int J Esthet Dent 2014;9:426-35.
• Krasanaki ME, Pelekanos S, Andreiotelli M, Koutayas SO, Eliades G. X-ray microtomographic evaluation of the influence of two preparation types on marginal fit of CAD/CAM alumina copings: a pilot study. Int J Prosthodont 2012;25:170-2.
• Schmitter M, Mueller D, Rues S. In vitro chipping behaviour of all-ceramic crowns with a zirconia framework and feldspathic veneering: comparison of CAD/CAM-produced veneer with manually layered veneer. J Oral Rehabil 2013;40:519-25.
• Pelekanos S, Koumanou M, Koutayas SO, Zinelis S, Eliades G. Micro-CT evaluation of the marginal fit of different In-Ceram alumina copings. Eur J Esthet Dent 2009;4:278-92.
• Yeo IS, Yang JH, Lee JB. In vitro marginal fit of three all-ceramic crown systems. J Prosthet Dent 2003;90:459-64.
• Sorensen JA, Munksgaard EC. Interfacial gaps of resin cemented ceramic inlays. Eur J Oral Sci 1995;103:116-20.
• Mou SH, Chai T, Wang JS, Shiau YY. Influence of different convergence angles and tooth preparation heights on the internal adaptation of Cerec crowns. J Prosthet Dent 2002;87:248-55.
• Hmaidouch R, Neumann P, Mueller WD. Influence of preparation form, luting space setting and cement type on the marginal and internal fit of CAD/CAM crown copings. Int J Comput Dent 2011;14:219-26.
• Chen HY, Hickel R, Setcos JC, Kunzelmann KH. Effects of surface finish and fatigue testing on the fracture strength of CAD-CAM and pressed-ceramic crowns. J Prosthet Dent 1999;82:468-75.