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The retention difference between cobalt chromium and zirconia coping in different angulations on telescopic overdenture Kevin Christopher Kawilarang; Heriyanti Amalia Kusuma; Murti Indrastuti
Majalah Kedokteran Gigi Indonesia Vol 6, No 3 (2020): December
Publisher : Faculty of Dentistry, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/majkedgiind.44383

Telescopic overdenture is one type of removable denture that uses dual coping system that consists of primary and secondary coping. Retention of telescopic overdenture is obtained from the friction between primary and secondary coping, which is mainly influenced by the type of material and coping angulation. The purpose of this study is to determine the retention differences between CoCr and zirconia coping with 0Â°, 1Â°, and 2Â° angulations. Twenty four pairs of telescopic overdenture coping samples with 6 mm length were divided into 6 groups (n = 4), CoCr 0°, CoCr 1°, CoCr 2°, zirconia 0°, zirconia 1°, and zirconia 2°. Measurement of retention between coping is done by pull-off test using universal testing machine (UTM) and data were analyzed by two way ANOVA. The results showed that the largest average retention was found in zirconia coping with 0° angulation group (22.48 N), while the smallest average retention was found in CoCr coping with 2° angulation group (10.28 N). Two way ANOVA revealed that there were significant differences among groups (p<0.05). LSD tests showed that there were significant differences among all of groups. This study concludes that zirconia coping has higher retention than CoCr coping and coping with 0° angulation has the highest retention.

The effect of fiber type and position on the transverse strength of an fiber reinforced composite (FRC) bridge Pramudya Aditama; Erwan Sugiatno; Murti Indrastuti
Majalah Kedokteran Gigi Indonesia Vol 6, No 3 (2020): December
Publisher : Faculty of Dentistry, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/majkedgiind.44616

Fixed bridge made of porcelain fused to metal (PFM) is one of the widely used dentures. However, this type of denture is easily broken and cracked. As an alternative, a fixed bridge made of fiber-reinforced composite (FRC) is produced with more benefits since it is more efficient in terms of time and cost. The purpose of this research is to find out the effect of type and fiber position on the transverse strength of an FRC bridge. The experimentinvolved 35 rod of FRC with the dimensions of 25x2x2 mm3. Subjects were divided into seven groups, each of which containing five subjects. Group I, II, III was reinforced with glass fiber on compression side, neutral side, and tension side. Group IV, V, VI were reinforced with polyethylene (PE) fiber on compression side, neutral side, and tension side. Group VII was not reinforced with any fiber. Rods were tested for transverse strength with universaltesting machine and all data were analyzed with two way ANOVA at 95% confidence level. The results showed that type and position of fiber had a significant effect (p<0.05), while the interaction between type and position of fiber had no significant effect (p>0.05). Least significance different post hoc test showed significant difference (p<0.05) for all groups, except between compression and no fiber. The conclusion of this research was that addition of glass fibers on tension side in bridge FRC increased the transverse strength to be higher than that with PE fibers. Fiber placement on tension side might improve the transverse strength than that of the other side.

EFFECT OF SILICA COATING IN ACRYLIC ARTIFICIAL TEETH ON SURFACE ROUGHNESS, CONTACT ANGLE, AND GROWTH OF STREPTOCOCCUS MUTANS Adella Syvia Maharani; Pramudya Aditama; Murti Indrastuti; Suparyono Saleh
ODONTO : Dental Journal Vol 8, No 2 (2021): December 2021
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/odj.8.2.106-112

ABSTRACTBackground: Acrylic resin artificial teeth is easily to have bacterial adhesion. It is necessary to perform a treatment on that surface, in order to reduce bacterial adhesion. This study aimed to reveal the effect of silica coating in acrylic resin artificial teeth on surface roughness, contact angle measurement, and the growth of Streptococcus mutans.Method: The study was conducted on two groups (n=16) of disk-shaped acrylic resin artificial teeth with a diameter of 10 mm and thickness of 2 mm. A 2% silica coating material was obtained by diluting 2 g silica nanoparticles on 100 ml of ethanol. Surface roughness, contact angle measurement, and the growth of Streptococcus mutans was measured using surface roughness measuring instrument, camera digital, and colony counter. The data obtained were then analyzed using T-test (p<0.05).Result: The results showed that the surface roughness and contact angle measurement in group I (0.29±0.08 μm); (79,49º ± 10,88º) was higher than group II (0.17±0.05 μm); (34,77º±0,05º). The growth of Streptococcus mutans in group I was also higher (32.28±3.75 CFU/ml) than group II (24.83±3.47 CFU/ml). Conclusion: The study concluded that there is an effect of silica coating on surface roughness, contact angle measurement, and the growth of Streptococcus mutans in acrylic resin artificial teeth.

Protesa obturator definitif resin akrilik pada pasien systemic lupus erythematosus (SLE) pasca maksilektomiAcrylic resin definitive obturator prosthesis in systemic lupus erythematosus (SLE) patients post-maxillectomy Pramudya Aditama; Erwan Sugiatno; Murti Indrastuti; Endang Wahyuningtyas
Jurnal Kedokteran Gigi Universitas Padjadjaran Vol 32, No 2 (2020): November 2020 (Suplemen 1)
Publisher : Fakultas Kedokteran Gigi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jkg.v32i2.28175

ABSTRAKPendahuluan: Systemic lupus erythematosus (SLE) merupakan inflamasi kronis yang dapat melibatkan sistem saraf, membran mukosa, dan organ lain dalam tubuh. Avascular bone necrosis (AVN) merupakan gejala yang muncul pada penderita SLE. Maksilektomi dilakukan pada tulang maksila yang mengalami AVN. Penutupan celah pasca maksilektomi tersebut dilakukan dengan cara menggunakan protesa maksilofasial intraoral yaitu obturator. Tujuan laporan kasus ini mengkaji rehabilitasi prostetik menggunakan protesa obturator definitif resin akrilik pada penderita SLE pasca maksilektomi. Laporan kasus: Seorang wanita berusia 21 tahun datang ke Poli Gigi dan Mulut RSUP Dr. Sardjito dengan keluhan bau mulut, hilangnya gusi pada langit-langit, dan kegoyahan gigi rahang atas. Pasien didiagnosis SLE sejak lebih dari 1 tahun yang lalu. Pada pemeriksaan intraoral, selain lesi pada mukosa palatum, ditemukan juga nekrosis pada tulang palatum, kehilangan gigi 14, 15, 16, dan 25, serta kegoyahan derajat 3 pada seluruh gigi rahang atas yang tersisa. Pasien dirawat dengan obat Myfortic (2 x 180 mg/hari) dan Fluconazole (1x150 mg/hari) kemudian dirujuk ke Poli Bedah Mulut untuk dilakukan maksilektomi, dilanjutkan dengan pembuatan protesa obturator oleh tim prostodonti. Pasien dibuatkan obturator pasca bedah untuk menutup celah palatum pasca maksilektomi. Pencetakan menggunakan bahan hydrocolloid irreversible sebelum operasi untuk pembuatan obturator pasca bedah. Insersi obturator menunjukkan celah palatum tertutup rapat oleh plat akrilik. Retensi didapatkan menggunakan kawat stainless pada titanium wire mesh pengganti tulang maksila. Tidak ada keluhan saat kontrol, penelanan baik. Tiga bulan pasca pemakaian obturator pasca bedah dilakukan pemasangan obturator definitif resin akrilik rahang atas. Pemeriksaan klinis menunjukkan suara sengau berkurang, estetis, dan pengunyahan baik. Simpulan: Protesa obturator definitif resin akrilik pada pasien SLE pasca maksilektomi dapat mengembalikan fungsi estetik, mengurangi suara sengau (mengembalikan fungsi bicara), mengembalikan fungsi penelanan, dan pengunyahan.Kata kunci: Maksilektomi, obturator definitif resin akrilik, systemic lupus erythematosus. ABSTRACTIntroduction: Systemic lupus erythematosus (SLE) is a chronic inflammation that involves the nervous system, mucous membranes, and other organs. Avascular bone necrosis (AVN) is a symptom that appears in people with SLE. Maxillectomy is performed on the maxillary bone affected with AVN. The post-maxillectomy gap closure was performed using an intraoral maxillofacial prosthesis, namely an obturator. This case report was aimed to examine the prosthetic rehabilitation using Acrylic resin definitive obturator prosthesis in SLE patients post-maxillectomy. Case report: A 21-years-old woman came to Dr Sardjito Oral Clinic with complaints of bad breath, palatogingival loss, and loose maxillary teeth. The patients was diagnosed with SLE for more than one year prior. The intraoral examination result showed that apart from the palatal mucosa lesions, there was also found necrosis of the palate bone, loss of teeth 14, 15, 16, and 25, and grade 3 loose of all of the remaining maxillary teeth. The patient was treated with Myfortic® (2 x 180 mg/day) and Fluconazole® (1 x 150 mg/day), then referred to the Oral Surgery Clinic for maxillectomy, followed the fabrication of obturator prostheses by the prosthodontist team. The patient was assigned a postoperative obturator to close the palate gap after maxillectomy. An imprint was carried out using an irreversible hydrocolloid material before surgery for the manufacture of a post-surgical obturator. The obturator insertion shows that the palate gap was tightly closed by an acrylic plate. Retention was obtained using the stainless wire on titanium wire mesh instead of the maxillary bone—the patients presented no complaints during control and had adequate ingestion. Three months after wearing a postoperative obturator, the acrylic resin definitive obturator prosthesis was then installed. Clinical examination showed reduced nasal sound, and better aesthetical and mastication aspect. Conclusion: Acrylic resin definitive obturator prosthesis in post-maxillectomy SLE patients can restore aesthetic function, reduce nasal sound (restore speech function), restore swallowing and mastication function.Keywords: Maxillectomy, acrylic resin definitive obturator prosthesis, systemic lupus erythematosus.

Overdenture sebagai preservasi tulang alveolar dan retensi gigi tiruan rahang bawah Haris Okta Akbar Sy; Heriyanti Amalia Kusuma; Murti Indrastuti; Endang Wahyuningtyas
MKGK (Majalah Kedokteran Gigi Klinik) (Clinical Dental Journal) UGM Vol 7, No 2 (2021)
Publisher : Fakultas Kedokteran Gigi, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/mkgk.55768

Overdenture merupakan gigi tiruan lepasan sebagian atau lengkap yang didukung oleh satu atau lebih gigi, akar gigi asli, atau implan gigi. Keuntungan penggunaan overdenture adalah menghambat resorpsi tulang alveolar serta memperoleh retensi dan stabilitas yang maksimal. Terhambatnya resorpsi tulang alveolar terjadi karena adanya akar gigi yang dipertahankan. Beberapa jenis penyangga overdenture yang dapat digunakan untuk menambah retensi dan stabilitas adalah bare root, magnet, dan coping. Tujuan dari studi kasus adalah untuk mengkaji penggunaan overdenture sebagai preservasi tulang alveolar dan retensi gigi tiruan rahang bawah. Pasien wanita berusia 52 tahun datang ke klinik Prostodonsia RSGM Prof. Soedomo ingin dibuatkan gigi tiruan dengan keluhan estetik, kesulitan mengunyah dan tidak jelas waktu berbicara. Gigi yang tersisa pada rahang atas hanya gigi 25 dengan kondisi nekrosis, sedangkan pada rahang bawah gigi yang tersisa adalah gigi 31 pulpitis ireversible, gigi 32 karies profunda, gigi 35 nekrosis, gigi 41 dan 42 karies dentin, gigi 43 nekrosis. Tatalaksana kasus adalah kaping pulpa gigi 32, penumpatan gigi 32, 41, dan 42, perawatan saluran akar gigi 25, 31, 35, dan 43, pembentukan bare root pada gigi 25, pegangan magnet pada gigi 35 dan 43, pemasangan short coping pada gigi 31. Insersi menunjukan retensi dan stabilitas gigi tiruan baik. Pada saat kontrol, pasien merasa puas karena gigi tiruan tersebut dapat memperbaiki estetis, fungsi pengunyahan dan bicara. Kesimpulan dari penggunaan overdenture magnet dan coping dapat mencegah terjadinya resopsi tulang alveolar serta meningkatkan retensi gigi tiruan rahang bawah.

Perawatan anopthalmic soket dengan protesa mata custom pada pengguna protesa mata ready made yang tidak sesuai Antoni Halim; Haryo Mustiko Dipoyono; Murti Indrastuti
MKGK (Majalah Kedokteran Gigi Klinik) (Clinical Dental Journal) UGM Vol 6, No 3 (2020)
Publisher : Fakultas Kedokteran Gigi, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/mkgk.64654

Laporan kasus ini menjelaskan metode sederhana pembuatan protesa mata custom made dengan bahan akrilik pada pasien wanita berumur 19 tahun yang memiliki keluhan kesulitan untuk melepaskan protesa matanya, ukuran protesa mata yang terlalu besar sehingga merasakan ketegangan otot mata, dan estetik kurang baik. Pemeriksaan objektif pada soket mata pasien tidak ditemukan adanya gambaran peradangan, otot kelopak mata yang sehatdan kedalaman sulkus yang cukup untuk menahan protesa mata. Tujuan Studi kasus ini menunjukkan perbedaan penggunaan protesa mata custom made dibandingkan protesa mata ready made dalam hal kepercayaan diri dan penerimaan sosial pasien. Rencana perawatan adalah pembuatan protesa mata custom made berbahan akrilik. Bahan dasar akrilik adalah salah satu bahan yang paling banyak digunakan dalam pembuatan protesa mata. Prosedur perawatan dilakukan dengan tahap-tahap yaitu pencetakan daerah sekitar mata dengan sendok cetakperorangan, pencetakan soket mata dengan sendok cetak mata perorangan dan pengisian hasil cetakan dilakukan dengan 2 tahap. Pembuatan pola malam sklera, mencoba pola malam sklera, pewarnaan sklera, membuat sklera akrilik, mencoba sklera akrilik, dan penentuan lokasi pupil dan diameter iris, pewarnaan iris, pupil dan pembuluh darah pada sklera, penyempurnaan protesa mata, serta insersi protesa mata custom made. Hasil kontrol setelah satu minggu tidak didapati keluhan rasa sakit dan peradangan. Hal ini menunjukkan rehabilitasi defek mata berhasildilakukan, ukuran protesa mata yang sesuai dengan mata pasien dan dapat diterima dalam estetika, retensi, dan stabilisasi. Kesimpulan, pasien merasa lebih nyaman menggunakan protesa mata custom made daripada protesa mata ready made. Penggunaan protesa mata dapat meningkatkan kepercayaan diri pasien dan penerimaan sosial terhadap pasien.

Definitive mandibular guide flange prosthesis pada pasien pasca hemimandibulektomi dekstra Sigit Ariawan; Endang Wahyuningtyas; Suparyono Saleh; Murti Indrastuti
MKGK (Majalah Kedokteran Gigi Klinik) (Clinical Dental Journal) UGM Vol 7, No 3 (2021)
Publisher : Fakultas Kedokteran Gigi, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/mkgk.37280

Tindakan operasi pada daerah maksilofasial dapat mengakibatkan cacat wajah, gangguan fungsi bicara, penelanan, pengunyahan, estetik serta gangguan kejiwaan. Hilangnya kontinuitas mandibula dapat mengganggu keseimbangan fungsi mandibula, menyebabkan gerakan mandibula yang berubah-ubah, sehingga terjadi kecacatan, sulit menelan, gangguan bicara dan artikulasi, serta deviasi dari sisa fragmen menuju sisi yang dioperasi. Saat membuka mulut, deviasi ini meningkat dan mengarah ke pembukaan dan penutupan secara angular. Perangkat korektif bernama guide flange prosthesis ditunjukkan untuk mengatasi manifestasi klinis tersebut. Tujuan laporan kasus ini adalah untuk mengkaji penggunaan mandibular guide flange prosthesis pada pasien pasca hemimandibulektomi dekstra, sebagai rehabilitasi fungsi pengunyahan, penelanan, fonetik dan estetika. Kesimpulan dari laporan kasus ini adalah protesa mandibula dengan guide flange dari bahan resin akrilik dapat merehabilitasi defek pada mandibula pasca hemimandibulektomi sehingga mengembalikan fungsi pengunyahan, fonetik, proses penelanan dan estetika.

Teknik mencetak neutral zone pada pembuatan overdenture dengan kombinasi tiga jenis penyangga Kevin Christopher Kawilarang; Titik Ismiyati; Murti Indrastuti; Herijanti Amalia Kusuma
MKGK (Majalah Kedokteran Gigi Klinik) (Clinical Dental Journal) UGM Vol 8, No 1 (2022)
Publisher : Fakultas Kedokteran Gigi, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/mkgk.44384

Resorpsi residual ridge yang parah sering kali menyebabkan kegagalan perawatan gigi tiruan lengkap akibat rendahnya stabilitas dan retensi. Terdapat beberapa cara untuk dapat meningkatkan residual ridge, antara lain dengan modifikasi teknik mencetak dan menggunakan sisa gigi asli sebagai penyangga untuk perawatan overdenture. Teknik mencetak neutral zone dapat meningkatkan stabilitas gigi tiruan. Teknik ini memungkinkan penyusunan anasir gigipada daerah keseimbangan otot. Penggunaan sisa gigi asli sebagai penyangga untuk perawatan overdenture terbukti efektif dalam menambah stabilitas, retensi, mencegah resorpsi residual ridge, dan memberikan proprioseptif yang lebih baik. Pemilihan jenis penyangga disesuaikan dengan keadaan sisa gigi dan pada beberapa kasus dilakukan kombinasi beberapa jenis penyangga. Tujuan penulisan ini untuk melaporkan teknik mencetak neutral zone padapembuatan tooth supported overdenture dengan kombinasi tiga jenis penyangga. Kasus pasien wanita 50 tahun, tersisa gigi 13, 14, 33, 34, 35, 47, serta sisa akar gigi 32 dan 38. Perawatan yang dipilih adalah tooth supported overdenture menggunakan kombinasi penyangga koping pendek pada gigi 13 dan 14, magnet pada gigi 33, dan bare root pada gigi 34 dan 35. Pencabutan dilakukan pada gigi 47 serta sisa akar gigi 32 dan 38. Pada rahang bawahdilakukan pencetakan dengan teknik neutral zone menggunakan bahan polyether medium body yang diletakkan di atas base plate rahang bawah dengan bantuan retensi kawat, kemudian pasien diinstruksikan untuk menggerakkan bibir, menelan, dan mengucapkan huruf vokal. Pencetakan neutral zone dalam pembuatan tooth supported overdenture pada residual ridge yang resorpsi dapat memudahkan operator dalam menentukan posisi penyusunananasir gigi pada harmonisasi otot, sehingga tekanan otot di sekitar gigi tiruan dapat membantu meningkatkan retensi, stabilitas, dan kenyamanan gigi tiruan pada saat berfungsi.

EFFECT OF SILICA COATING IN ACRYLIC ARTIFICIAL TEETH ON SURFACE ROUGHNESS, CONTACT ANGLE, AND GROWTH OF STREPTOCOCCUS MUTANS Adella Syvia Maharani; Pramudya Aditama; Murti Indrastuti; Suparyono Saleh
Odonto : Dental Journal Vol 8, No 2 (2021): December 2021
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

ABSTRACTBackground: Acrylic resin artificial teeth is easily to have bacterial adhesion. It is necessary to perform a treatment on that surface, in order to reduce bacterial adhesion. This study aimed to reveal the effect of silica coating in acrylic resin artificial teeth on surface roughness, contact angle measurement, and the growth of Streptococcus mutans.Method: The study was conducted on two groups (n=16) of disk-shaped acrylic resin artificial teeth with a diameter of 10 mm and thickness of 2 mm. A 2% silica coating material was obtained by diluting 2 g silica nanoparticles on 100 ml of ethanol. Surface roughness, contact angle measurement, and the growth of Streptococcus mutans was measured using surface roughness measuring instrument, camera digital, and colony counter. The data obtained were then analyzed using T-test (p<0.05).Result: The results showed that the surface roughness and contact angle measurement in group I (0.29±0.08 μm); (79,49º ± 10,88º) was higher than group II (0.17±0.05 μm); (34,77º±0,05º). The growth of Streptococcus mutans in group I was also higher (32.28±3.75 CFU/ml) than group II (24.83±3.47 CFU/ml). Conclusion: The study concluded that there is an effect of silica coating on surface roughness, contact angle measurement, and the growth of Streptococcus mutans in acrylic resin artificial teeth.

The relationship between bizygomatic width and mesiodistal width of six maxillary anterior teeth in a Javanese population Indrastuti, Murti; Barunawati, Sri Budi; Hasudungan, Dian Samuel
Majalah Kedokteran Gigi Indonesia Vol 8, No 3 (2022): December
Publisher : Faculty of Dentistry, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/majkedgiind.79146

The selection of the mesiodistal width of maxillary anterior teeth is the key to success in prosthodontic treatment. Determining anterior teeth width when there is no existing pre-extraction record can be done through bizygomatic width measurement. The purpose of this study was to look at the relationship between bizygomatic width and mesiodistal width of six maxillary anterior teeth in the Javanese population. This study used a cross-sectional design and was conducted on 32 Javanese subjects who met the following criteria: being 18-25 years of age, having Angle class 1 malocclusion, having complete maxillary anterior permanent teeth, not using dentures, currently not undergoing any orthodontic treatment, and having no abnormalities found in the facial area. The bizygomatic width was measured with a digital caliper with an accuracy of 0.01 mm from the marked right and left bizygomatic points. The mesiodistal width of the six maxillary anterior teeth was measured using dental floss looped from the distal left canine to the right canine. Dental floss marked with a pen was stretched horizontally on paper and then measured with a digital caliper with an accuracy of 0.01 mm. The measurement was done in triplicate. Data were analyzed using Pearson’s correlation and the simple linear regression test. This study’s analysis revealed a strong and positive correlation (r = 0.538 and p < 0.05) between the bizygomatic width and mesiodistal width of the maxillary anterior teeth. The result of the simple linear regression test showed a significant result (p < 0.05). It can be concluded that there was a relationship between the bizygomatic width and the mesiodistal width of the six maxillary anterior teeth in the Javanese population. The mesiodistal width of the six maxillary anterior teeth in the Javanese population can be measured by multiplying the bizygomatic width by the multiplier factor, i.e., 0.427.

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