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All Journal Majalah Kedokteran Gigi Indonesia Padjadjaran Journal of Dentistry
Gita Retyoningrum, Gita
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Biochemistry, Genetics & Molecular Biology Dentistry Health Professions Immunology & microbiology Medicine & Pharmacology Public Health

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The comparison of surface roughness value of microfilled and nano particle composite restoration that polish using rubber cups Retyoningrum, Gita; Amanda, Rizki Yuli; Dharsono, HD Adhita; Febrida, Renny
Padjadjaran Journal of Dentistry Vol 21, No 3 (2009): November
Publisher : Faculty of Dentistry Universitas Padjadjaran, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (830.164 KB) | DOI: 10.24198/pjd.vol21no3.14113

Abstract

Surface roughness composite restoration can decrease aesthetic aspect of composite restoration and facilitated bacterial retention. It can affect periodontal disease and recurrent caries. Polishing is a process to obtain a smooth and glossy surface of restoration. Rubber cups is one of polishing instrument that frequently used to get a smooth, glossy and aesthetic surface of restoration. The specimen was micro filled (3M ESPE Z100TM Restorative, St. Paul) and nano particle (3M ESPE Z350TM Restorative, St. Paul) composite resin blocks sized 5x5x2 mm. Each of composite consists of ten specimens that polished with rubber cups for 30 seconds at 3500 rpm. Surface roughness was measured five times for each specimen by using surface roughness tester. Average Ra value of micro filled was 0.22 μm and Ra value of nano particle was 0.25 μm. Data were analyzed by using independent t-test at α 0.05 significance level and showed statistically significant differences. The conclusion of this experiment showed that surface roughness value of micro filled composite resin was smaller than nano particle composite resin restoration. A small amount of filler particle (50.6% wt) made micro filled easier to polish and made a smooth surface restoration. Nano particle composition has more filler particle amount (78.5% wt), and hard zirconia filler that difficult to polish than silica colloidal filler in microfilled composite resin.
Orthodontic management of angle Class III malocclusion with severe anterior crowding Retyoningrum, Gita; Paskalin, Zenith; Sayuti, Elih; Laviana, Avi; Evangelina, Ida Ayu; Mardiati, Endah
Majalah Kedokteran Gigi Indonesia Vol 11, No 2 (2025): August
Publisher : Faculty of Dentistry, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/majkedgiind.105794

Abstract

Dental malocclusion Class III is a challenging condition characterized by a Class III molar relationship, and it has a specific anterior condition according to Dewey classification. In some cases, Class III dental malocclusion with skeletal Class I may present with a convex rather than a concave profile. Several methods are available to correct a convex profile, including extraction, full arch distalization using TADs, intermaxillary elastic Class II, anterior segment retraction, and others. Combining more than one of these methods can be effective in correcting a convex profile. An 18 year-old woman presented to RSGM Universitas Padjadjaran with a diagnosis of Angle Class III dental malocclusion, skeletal Class I with a convex profile, normal maxillary incisor inclination, asymmetric profile, severe anterior crowding in both arches, minimal overjet, anterior crossbite, upper midline shift, clockwise rotation and high-angle mandible, and lingual inclination of the mandibular incisors. The patient was treated with a Roth prescription fixed orthodontic appliance. Maxillary and mandibular first premolars were extracted to create space, and lacebacks were applied to the canines to correct severe anterior crowding]. Bilateral intermaxillary Class III elastics were used to maintain the facial profile and prevent it from becoming concave. Treatment was completed in 18 months, achieving a Class I molar relationship, midline correction, optimal overbite and overjet, and preservation of the facial profile. This case report presents the orthodontic management of Angle Class III malocclusion with skeletal Class I and severe anterior crowding, successfully treated with first premolar extractions while maintaining a convex profile.
Co-Authors Avi Laviana, Avi Endah Mardiati, Endah HD Adhita Dharsono, HD Adhita Ida Ayu Evangelina, Ida Ayu Paskalin, Zenith Renny Febrida Rizki Yuli Amanda, Rizki Yuli Sayuti, Elih