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All Journal MKGK (Majalah Kedokteran Gigi Klinik) (Clinical Dental Journal) UGM Majalah Kedokteran Gigi Indonesia Insisiva Dental Journal : Majalah Kedokteran Gigi Insisiva Dental Journal (Majalah Kedokteran Gigi) Indonesian Journal of Chemistry

Pinandi Sri Pudyani

Universitas Gadjah Mada

Author-ID : 499330

Chemical Engineering, Chemistry & Bioengineering Chemistry Dentistry Health Professions

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The effect of silanated and impregnated fiber on the tensile strength of E-glass fiber reinforced composite retainer Niswati Fathmah Rosyida; Siti Sunarintyas; Pinandi Sri Pudyani
Dental Journal (Majalah Kedokteran Gigi) Vol. 48 No. 1 (2015): March 2015
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Background: Fiber reinforced composite (FRC) is can be used in dentistry as an orthodontic retainer. FRC still has a limitations because of to a weak bonding between fibers and matrix. Purpose: This research was aimed to evaluate the effect of silane as coupling agent and fiber impregnation on the tensile strength of E-glass FRC. Methods: The samples of this research were classified into two groups each of which consisted of three subgroups, namely the impregnated fiber group (original, 1x addition of silane, 2x addition of silane) and the non-impregnated fiber group (original, 1x addition of silane, 2x addition of silane). The tensile strength was measured by a universal testing machine. The averages of the tensile strength in all groups then were compared by using Kruskal Wallis and Mann Whitney post hoc tests. Results: The averages of the tensile strength (MPa) in the impregnated fiber group can be known as follow; original impregnated fiber (26.60±0.51), 1x addition of silane (43.38±4.42), and 2x addition of silane (36.22±7.23). The averages of tensile strength (MPa) in the non-impregnated fiber group can also be known as follow; original non-impregnated fiber (29.38±1.08), 1x addition of silane (29.38±1.08), 2x addition of silane (12.48±2.37). Kruskal Wallis test showed that there was a significant difference between the impregnated fiber group and the non-impregnated fiber group (p<0.05). Based on the results of post hoc test, it is also known that the addition of silane in the impregnated fiber group had a significant effect on the increasing of the tensile strength of E-glass FRC (p<0.05), while the addition of silane in the non-impregnated fiber group had a significant effect on the decreasing of the tensile strength of E-glass FRC. Conclusion: It can be concluded that the addition of silane in the non-silanated fiber group can increase the tensile strength of E-glass FRC, but the addition of silane in the silanated fiber group can decrease the tensile strength of E-glass FRC. It is also known that the impregnation of fiber can increase the tensile strength of E-glass FRC.

The effect of nanochitosan hydrogel membrane on absorbtion of nickel, inhibition of Streptococcus mutans and Candida albicans Andi Triawan; Pinandi Sri Pudyani; Soesatyo Marsetyawan HNE; Sismindari -
Dental Journal (Majalah Kedokteran Gigi) Vol. 48 No. 1 (2015): March 2015
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Background: The use of fixed orthodontic appliance for a long time can potentially cause nickel ion release, increase in the growth of Streptococcus mutans (S. mutans) and Candida albicans (C. albicans). Chitosan has the ability to bind metal, antibacterial and antifungal. Physical modification of chitosan into the nanoparticles size will expand the surface of the chitosan so that the absorption of nickel ions and the inhibition of growth bacteria and fungi can be increased. Purpose: The purpose of the study was to determine the effect of nanochitosan hydrogel membrane to the absorption of nickel ions, and the inhibition of S. mutans and C. albicans growth. Methods: Nanochitosan hydrogel membrane with chitosan weight variation of 0.6; 0.8 and 1 g immersed in artificial saliva containing nickel 0.075 mg / L for 15, 30 and 45 minutes. The nanochitosan hydrogel membrane was tested for nickel ion absorption by Atomic Absorption Spectrophotometry, whereas the antibacterial and antifungal tests were done by exposing the nanochitosan hydrogel membrane - nickel on S. mutans and C. albicans in the wells of plate. Results: Demonstrated that absorption of nickel ions was related with the increase in weight of chitosan and soaking time. Inhibition of growth of S. mutans and C. albicans showed a positive correlation with the increase in weight of chitosan. Conclusion: Variation on chitosan weight on hydrogel membrane and variation on immersion time have effect on nickel ion absorption, inhibition of S. mutans and C. albicans growth.

Pelepasan ion nikel dan kromium kawat Australia dan stainless steel dalam saliva buatan (The release of nickel and chromium ions from Australian wire and stainless steel in artificial saliva) Nolista Indah Rasyid; Pinandi Sri Pudyani; JCP Heryumani
Dental Journal (Majalah Kedokteran Gigi) Vol. 47 No. 3 (2014): September 2014
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Background: Fixed orthodontic treatment needs several types of wire to produce biomechanical force to move teeth. The use orthodontic wire within the mouth interacts with saliva, causing the release of nickel and chromium ions. Purpose: The study was aimed to examine the effect of immersion time in artificial saliva between special type of Australian wire and stainless steel on the release of nickel and chromium ions. Methods: Thirty special type Australian wires and 30 stainless steel wires were used in this study, each of which weighed 0.12 grams. The wires were immersed for 1, 7, 28, 35, 42, and 49 days in artificial saliva with a normal pH. The release of ions in saliva was examined using Atomic Absorption spectrophotometry. Results: The result indicated that the release of nickel ions on special type of Australian wire was larger than that on stainless steel wire (p<0.005), there were differences in the release of the amount of nickel ions on special type of Australia in different immersion time, and there was a correlation between the types of wire and immersion time. Nickel ions released from the special type of Australian wire detected on the 7th day of immersion and reached its peak on the 35th day, while from stainless steel wire were detected on the 49th day of immersion. The released of chromium ions from the special type of Australian wire and stainless steel wire were not detected until the 49th day of immersion. Conclusion: The release of nickel ions were highest on the 35th day of immersion in special type of Australian wire and they were detected on the 49th day in stainless steel wire. The release of chromium ions were not detected until 49th day of immersion in special type of Australian and stainless steel wire.Latar belakang: Perawatan ortodonti cekat memerlukan beberapa macam kawat untuk menghasilkan kekuatan biomekanika yang sesuai dalam menggerakkan gigi. Pemakaian kawat ortodonti di dalam mulut dapat bereaksi dengan saliva sehingga menyebabkan terjadinya pelepasan ion nikel dan kromium. Tujuan: Penelitian ini bertujuan untuk meneliti pengaruh waktu perendaman dalam saliva buatan terhadap pelepasan ion nikel dan kromium antara kawat Australia tipe spesial dengan kawat stainless steel. Metode: Penelitian ini menggunakan 30 buah kawat Australia tipe spesial dan 30 buah kawat stainless steel dengan berat tiap kawat 0,12 gram. Kawat direndam selama 1, 7, 28, 35, 42 dan 49 hari dalam saliva buatan pH normal. Pemeriksaan pelepasan ion pada saliva menggunakan spektrofotometri serapan Atom. Hasil: Pelepasan ion nikel pada kawat Australia tipe spesial lebih besar dibandingkan dengan kawat stainless steel, terdapat perbedaan pelepasan jumlah ion nikel pada kawat Australia tipe spesial antara waktu perendaman dan terdapat interaksi antara jenis kawat dengan waktu perendaman. Ion nikel yang terlepas pada kawat Australia tipe spesial mulai terdeteksi pada hari ke-7 perendaman dan mencapai jumlah tertinggi pada hari ke-35 sedangkan pada kawat stainless steel mulai terdeteksi pada perendaman hari ke-49. Pelepasan ion kromium pada kawat Australia tipe spesial dan kawat stainless steel tidak terdeteksi sampai perendaman hari ke-49. Simpulan: Pelepasan ion nikel pada kawat Australia tipe special terdeteksi paling tinggi pada lama perendaman hari ke tiga puluh lima, kawat stainless steel terdeteksi pada lama perendaman hari ke empat puluh sembilan. Pelepasan ion kromium pada kawat Australia tipe special dan stainless steel tidak terdeteksi sampai lama perendaman hari ke empat puluh sembilan.

Alkaline phosphatase expression during relapse after orthodontic tooth movement Pinandi Sri Pudyani; Widya Asmara; Ika Dewi Ana; Tita Ratya Utari
Dental Journal (Majalah Kedokteran Gigi) Vol. 47 No. 1 (2014): March 2014
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Background: The increasing of osteoblast activities during bone formation will be accompanied with the increasing expression of alkaline phosphatase enzyme (ALP). ALP can be obtained from clear fluid excreted by gingival crevicular fluid (GCF). Bone turnover, especially bone formation process, can be monitored through the expression of ALP secreted by GCF during orthodontic treatment. Thus, retention period is an important period that can be monitored through the level of bone metabolism around teeth. Purpose: This research were aimed to determine the relation of distance change caused by tooth relapse and ALP activities in gingival crevicular fluid after orthodontic; and to determine ALP as a potential biomarker of bone formation during retention period. Methods: Lower incisors of 25 guinea pigs were moved 3 mm to the distally by using open coil spring. Those relapse distance were measured and the gingival crevicular fluid was taken by using paper points to evaluate ALP levels on days 0, 3, 7, 14 and 21 respectivelly by using a spectrophotometer (405 nm). t-test and ANOVA test were conducted to determine the difference of ALP activities among the time intervals. The correlation regression analysis was conducted to determine the relation of distance change caused by the relapse tooth movement and ALP activities. Results: The greatest relapse movement was occurred on day 3 after open coil spring was removed. There was significant difference of the average of distance decrease among groups A1-A5 (p<0.05). It was also known that ALP level was increased on day 3, but there was no significant difference of the average level of ALP among groups A1-A5 (p>0.05). Finally, based on the results of correlation analysis between the ALP level decreasing and the relapse distance on both right and left of mesial and distal sides, it is known that there was no relation between those two variables (p>0.05). Conclusion: It can be concluded that relapse after orthodontic tooth movement occurs rapidly as the teeth are free from orthodontic force. ALP level can be detected through gingival crevicular fluid during relapse by using a spectrophotometer.Latar belakang: Peningkatan aktivitas osteoblas selama pembentukan tulang akan disertai peningkatan ekspresi enzim alkalin fosfatase (Alkaline Phosphatase/ALP). Sumber ALP dapat diperoleh dari cairan bening yang diekskresi celah gingiva gigi yang dikenal sebagai cairan krevikuler gingiva (gingival crevicular fluid/GCF). Bone turnover terutama proses pembentukan tulang dapat dimonitor melalui ekspresi ALP cairan krevikuler gingiva selama perawatan ortodonti. Periode retensi merupakan periode yang penting. Kesulitan memecahkan masalah retensi akan dapat ditangani dengan memonitor tingkat metabolisme tulang disekitar gigi. Tujuan: Penelitian ini bertujuan untuk meneliti perubahan jarak relapse gigi dan aktivitas ALP pada cairan krevikuler gingiva setelah digerakkan secara ortodonti dan potensi ALP sebagai biomarker pembentukan tulang pada periode retensi. Metode: Gigi insisivus bawah 25 ekor marmot digerakkan ke distal menggunakan opencoil spring sampai mencapai jarak ± 3 mm, diukur gerakan relapse gigi dan pengambilan cairan krevikuler gingiva menggunakan paper point untuk dievaluasi kadar ALP pada hari ke 0, 3, 7, 14 dan 21 menggunakan spektrofotometer (405 nm). Analisis t-test dan anova untuk mengetahui perbedaan aktivitas ALP antar interval waktu dan analisis regresi korelasi untuk mengetahui hubungan besarnya jarak relapse dengan aktivitas ALP. Hasil: Pergerakan relapse yang paling besar terjadi pada hari ke 3 setelah opencoil spring dilepas. Terdapat perbedaan rata-rata penurunan jarak antar kelompok A1-A5 yang signifikan (p<0,05). Kadar ALP mengalami peningkatan pada hari ke 3, namun tidak terdapat perbedaan rata-rata yang signifikan kadar ALP antar kelompok A1-A5 (p>0,05). Hasil uji korelasi antara penurunan jarak dengan kadar ALP pada mesial distal gigi baik kanan maupun kiri tidak menunjukkan adanya hubungan kedua variabel (p>0,05). Simpulan: Relapse pada perawatan ortodonti terjadi secara cepat ketika gigi terbebas dari gaya ortodonti. Kadar ALP dapat terdeteksi dari cairan krevikuler gingiva pada pergerakan relapse gigi menggunakan spektrofotometer.

Profil jaringan lunak wajah kasus borderline maloklusi klas I pada perawatan ortodonti dengan dan tanpa pencabutan gigi (Facial soft tissue profile on borderline class I malocclusion in orthodontic treatment with or without teeth extraction) Pinandi Sri Pudyani; Yenni Hanimastuti
Dental Journal (Majalah Kedokteran Gigi) Vol. 46 No. 4 (2013): December 2013
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Background: Determination of orthodontic treatment plan with or without teeth extraction remains controversial, especially in borderline cases, so it requires more data and information to establish appropriate treatment plans in order to obtain optimal treatment results. Purpose: The study was aimed to determine the facial soft tissue changes in the borderline class I cases treated with and without tooth extraction on post-orthodontic treatment. Methods: The study was conducted on 28 lateral cephalograms, divided into two groups; 13 cases with tooth extraction, and 15 cases without tooth extraction. The subject criterias were as follows; class I malocclusion treated with straightwire technique, skeletal class I, in range of age between 18 to 30 years old, normal overjet 2-4 mm, arch length discrepancy between 2.5 to 5 mm, Index of Fossa Canine (IFC) between 37% to 44%, did not using extraoral devices, and treated with teeth extraction of 4 second premolars or without tooth extraction. The measurement of nasolabial angle, labiomental angle, and linear position of the upper and lower lip to E-Ricketts line were done on each cephalogram before and after orthodontic treatment. Results: In teeth extraction cases, there was a change on upper and lower lips positions (p<0.05), but there were no changes on nasolabial angle and labiomental angle (p>0.05). In non teeth extraction cases, there were no changes in nasolabial angle, labiomental angle, and lips positions (p>0.05). Both of groups also have indicated that there were no changes on linear position of the upper and lower lip (p>0.05). Post-orthodontic treatment indicated a significant differences between extraction and nonextraction cases on nasolabial and labiomental angle, and lips position (p<0.05). Conclusion: The facial soft tissue profile changes on teeth extraction case was more retruded than non- teeth extraction case.Latar belakang: Penentuan rencana perawatan ortodonti dengan pencabutan atau tanpa pencabutan masih menjadi kontroversi, terutama pada kasus borderline, sehingga diperlukan lebih banyak data dan informasi untuk menetapkan rencana perawatan yang tepat agar didapatkan hasil perawatan optimal. Tujuan: Studi ini bertujuan meneliti perubahan profil jaringan lunak wajah sesudah perawatan ortodonti dengan pencabutan dan tanpa pencabutan. Metode: Pengukuran dilakukan pada 28 sefalogram lateral yang terdiri dari 2 kelompok, yaitu 13 sefalogram lateral untuk kasus dengan pencabutan gigi dan 15 sefalogram lateral untuk kasus tanpa pencabutan gigi. Kriteria subjek penelitian adalah maloklusi klas I yang dirawat dengan teknik straightwire, hubungan skeletal klas I, berusia 18–30 tahun, overjet normal antara 2–4 mm, diskrepansi panjang lengkung antara 2,5–5 mm, Indeks Fossa Canina (IFC) antara 37%-44%, tidak menggunakan alat ekstraoral, dan perawatan dengan pencabutan 4 premolar kedua atau tanpa pencabutan. Pada tiap sefalogram dilakukan pengukuran sudut nasolabial, sudut labiomental, dan pengukuran linier posisi bibir atas dan bawah terhadap garis E Ricketts sebelum dan sesudah perawatan ortodonti. Hasil: Pada kelompok pencabutan terdapat perubahan posisi bibir atas dan bawah terhadap garis E Ricketts (p<0,05), namun tidak terdapat perubahan sudut nasolabial dan sudut labiomental (p>0,05). Pada kelompok tanpa pencabutan tidak terdapat perubahan pada sudut nasolabial, sudut labiomental, dan posisi bibir (p>0,05). Terdapat perbedaan sudut nasolabial, sudut labiomental, dan posisi bibir antara kelompok dengan pencabutan dan tanpa pencabutan sesudah perawatan ortodonti (p<0,05). Simpulan: Profil jaringan lunak wajah kelompok yang dirawat dengan pencabutan gigi menjadi lebih retrusi daripada profil jaringan lunak wajah kelompok yang dirawat tanpa pencabutan.

Morphological changes of alveolar bone due to orthodontic movement of maxillary and mandibulary incisors Pinandi Sri Pudyani; Darmawan Sutantyo; Sri Suparwitri
Dental Journal (Majalah Kedokteran Gigi) Vol. 41 No. 1 (2008): March 2008
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Ideally in orthodontic tooth movement, alveolar bone will follow its movement, therefore, the ratio between bone remodeling and tooth movement is 1:1. The problem whether the ratio is valid for all kinds of tooth movement such as: tipping, torquing, or bodily, or it could be applied in tooth movement of all directions such as facially, lingually or sagitally. Various studies also showed many different ideas. Some studies state that root dehiscence and fenestration are frequently found in final orthodontic treatment and some other state that bone remodeling can compensate tooth movement. The purpose of this study was to know the changes of alveolar bone morphology caused by anterior tooth movement. The conclusion is remodeling compensation is not matched with the extension of tooth movement, thus there are many cases of root dehiscence and fenestration after orthodontic treatment.

Effects of orthodontic forces on pulp tissue Pinandi Sri Pudyani
Dental Journal (Majalah Kedokteran Gigi) Vol. 39 No. 3 (2006): September 2006
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Numerous researches on pulp tissue changes caused by orthodontic forces have been performed, among others are: pulp angiogenesis, pulp tissue respiration rate, alkaline phosphatase and aspartate aminotransferase enzyme activities; micro vascular response inside the pulp and the effect of dental movement i.e. extrusion, intrusion, and torque. The result is still controversial, as some researchers claim that orthodontic force has a negative effect, others deny by saying there is no such effect on pulp tissue.

Dental root periapical resorption caused by orthodontic treatment Pinandi Sri Pudyani
Dental Journal (Majalah Kedokteran Gigi) Vol. 39 No. 1 (2006): March 2006
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Dental root resorption especially in maxillary incisive region almost always happens simultaneously with orthodontic treatment, and it gained researchers attention, in particular after the use of periapical radiography. However, the fundamental etiology of dental root resorption is still dubious. Multifactoral causes are mentioned, among others are hormonal, nutritition, trauma, dental root form and dental root structure anomalies, genetic, while from treatment side are duration, types, strength scale and dental movement types. Based on these findings, orthodontic treatment was proven to cause dental root resorption in maxillary incisive teeth.

Reversibilitas kalsifikasi tulang akibat kekurangan protein pre dan post natal (Reversibility of bone calcification on pre and post natal protein deficiency) Pinandi Sri Pudyani
Dental Journal (Majalah Kedokteran Gigi) Vol. 38 No. 3 (2005): September 2005
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

The growth and development play an important role in orthodontics mainly in bone, because it can determine the maturity of the bone. Bone maturity evaluation is very important in orthodontic treatment, because there are many individual variations in growth and development such as time, duration and velocity of the growth. Nutritional status during pregnancy and infant period will influence the growth and the development of bone. Protein diet is an important factor, which will determine the optimal calcification during bone growth and development stages. Bone calcification, in orthodontics, can be used to estimate the bone maturity for diagnosis and treatment planning. The purpose of this study was to recognize ones ability to surpass calcium and phosphor deficiency because of pre and postnatal protein deficiency. There were three groups of samples of Rattus norvegicus rats. The first group was the control group with standard diet, the second was the infant group with pre and postnatal protein deficiency, and the third group was young rat at weaning age with pre and postnatal protein deficiency supplemented with enough protein in the diet. Bone calcification stage was analyzed: 1) Histologically by measuring epiphyseal width on right femur; 2) by measuring calcium and phosphor concentration on left femur with Spectrophotometry Atomic Absorption and spectroscopy ultra light visible. The data were analyzed by one way ANOVA continued by t test. The result showed that: 1) there was significant (p < 0.01) epiphyseal width difference between group I and II, I and III (p < 0,01) but there was not significant difference between group II & III (p > 0.05); 2) there was significant calcium and phosphor concentration on bone between group I, II and III (p < 0.01). It was concluded that bone calcification damage because of pre and post natal protein deficiency was an irreversible process. Protein supplement after bone calcification could not restore the condition.

Effects of silane application on the shear bond strength of ceramic orthodontic brackets to enamel surface Pinandi Sri Pudyani; Setiarini Widiarsanti
Dental Journal (Majalah Kedokteran Gigi) Vol. 49 No. 4 (2016): December 2016
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Background: Fixed orthodontic appliances with ceramic brackets are used frequently to fulfill the aesthetic demand of patient through orthodontic treatment. Ceramic brackets have some weaknesses such as bond strength and enamel surface damage. In high bond strength the risk of damage in enamel surfaces increases after debonding. Purpose: This study aimed to determine the effect of silane on base of bracket and adhesive to shear bond strength and enamel structure of ceramic bracket. Method: Sixteen extracted upper premolars were randomly divided into four groups based on silane or no silane on the bracket base and on the adhesive surface. Design of the base on ceramic bracket in this research was microcrystalline to manage the influence of mechanical interlocking. Samples were tested in shear mode on a universal testing machine after attachment. Following it, adhesive remnant index (ARI) scores were used to assess bond failure site. Statistical analysis was performed using a two-way Anova and the Mann-Whitney test. A scanning electron microscope (SEM) with a magnification of 2000x was used to observe enamel structure after debonding. Result: Shear bond strength was increased between group without silane and group with silane on the base of bracket (p<0,05). There was no significance different between group without silane and group with silane on adhesive (p<0,05). Conclusion: Application of silane on base of bracket increases shear bond strength, however, application of silane on adhesive site does not increase shear bond strength of ceramic bracket. Most bonding failure occurred at the enamel adhesive interface and damage occurred on enamel structure in group contains silane of ceramic bracket.

Co-Authors Akhmad Kharis Nugroho Andi Triawan Ardianysah, M. Shulchan Ardianysah, M. Shulchan Bramita Beta Arnanda Darmawan Sutantyo Darmawan Sutantyo Darmawan Sutantyo Darmawan Sutantyo, Darmawan Dewi Agustina Dyah Karunia Elfira Maharani Farmasyanti, Cendrawasih Andusyana Fikri, Annisa Nurul Heri Susilo Winarti Heri Susilo Winarti, Heri Susilo Ika Dewi Ana Ika Dewi Ana Indra Sari JCP Heryumani Nolista Indah Rasyid Novarini Prahastuti Novarini Prahastuti, Novarini Rosyida, Niswati Fathmah Setiarini Widiarsanti Setiarini Widiarsanti Sismindari - Siti Sunarintyas Soekarsono Hardjono Soekarsono Hardjono Soekarsono Hardjono, Soekarsono Soesatyo Marsetyawan HNE Sofia Mubarika Haryana Sri Suparwitri Teguh Ariyanto Tita Ratya Utari Widya Asmara Yenni Hanimastuti Yenni Hanimastuti Yenni Hanimastuti, Yenni

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