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"Despite the importance of conducting regular epidemiological surveys to monitor dental health in lower socio-economiccitizens especially of preschool children, only few papers were published respectively. The aims of this study were todescribe preschool children's and their mother's dental caries experiences and to describe mothers' knowledge andbehaviors' towards dental health in a suburb area near the capital city of Indonesia. The samples were 152 mother-childpairs with children age less than 5 years old. Intra oral examination by decay-missing-filling-teeth index was performed.Moreover, interviews were conducted to gain information regarding mothers’ oral health behavior and knowledge. 70%children had caries with mean dmf-t = 3.7, consisting 100% of component decay. 90% mothers had caries with DMFT=7.8, consisting 99% of component decay. More than 50% of mothers had low knowledge and behaviors towardsdental health, which comprises of: (1) never checked their children’s dental health, (2) starting to clean their child'steeth after child's age is more than 1 years old, (3) don’t know that caries is an infectious disease, (4) frequently usingsame feeding and drinking equipments together with their children, (5) considering deciduous teeth are not importantbecause it will be replaced with permanent teeth anyway. It could be concluded that the prevalence of dental caries instudied sample were high, these were relevant to the findings that the mother's knowledge and behaviors' towards dentalhealth were low. The results of this study demonstrated that mothers might have a high contribution in their child’scaries risk. Prevention should be undertaken at an early age and actively including caregivers is essential in planningand conducting any dental health interventions.Perilaku Kesehatan Gigi Ibu dan Pengalaman Karies Gigi Ibu-Anak: Studi pada Kota Satelit di Indonesia.Meskipun pentingnya melakukan survei epidemiologi untuk memantau kesehatan gigi terutama anak-anak prasekolah,hanya sedikit publikasi yang telah diterbitkan mengenai hal tersebut. Tujuan studi ini adalah untuk mendeskripsipengalaman karies gigi pada anak-anak prasekolah dan ibunya serta untuk menggambarkan pengetahuan dan perilakuibu terhadap kesehatan gigi di daerah pinggiran kota dekat ibu kota Indonesia. Sampel terdiri atas 152 pasang ibu-anakdengan usia anak kurang dari 5 tahun. Pemeriksaan intraoral dilakukan dengan panduan indeks gigi lubang-hilangtambal.Selain itu, wawancara dilakukan untuk mendapatkan informasi mengenai perilaku dan penetahuan kesehatangigi ibu. 70% anak-anak telah menderita karies gigi dengan nilai dmf-t = 3,7, 100% diantaranya terdiri dari komponengigi berlubang. 90% ibu telah menderita karies dengan DMF-T = 7,8, 99% diantaranya terdiri dari komponen kariesgigi. Lebih dari 50% ibu-ibu memiliki pengetahuan dan perilaku rendah terhadap kesehatan gigi, dengan fakta yangterungkap diantaranya: (1) tidak pernah memeriksa gigi anak-anak mereka, (2) mulai membersihkan gigi anak merekasetelah usia anak lebih dari 1 tahun, (3) tidak mengetahui bahwa karies adalah penyakit menular, (4) seringmenggunakan peralatan makan dan minum yang sama dengan anak-anak mereka, (5) menganggap gigi sulung tidakpenting karena akan diganti dengan gigi tetap. Prevalensi karies gigi pada sampel yang telah dianalisa tinggi, hal inirelevan dengan temuan bahwa pengetahuan dan perilaku ibu terhadap kesehatan gigi rendah. Hasil studi inimenunjukkan bahwa ibu memiliki kontribusi terhadap risiko karies anak. Pencegahan karies gigi harus dilakukan padausia dini dan peran aktif Ibu sangat penting dalam perencanaan dan intervensi kesehatan gigi."

"Karies merupakan penyakit gigi yang banyak dijumpai pada anak-anak usia sekolah dasar di Indonesia. Walaupun tidak menimbulkan kematian, sebagai akibat dari kerusakan gigi dan jaringan pendukung gigi, dapat mennurunkan tingkat produktivitas seseorang, karena dari aspek biologis akan dirasakan sakit, sehingga aktivitas belajar, makan dan tidur terganggu. Penelitian ini dilakukan di Sekolah Dasar Negeri kelas 1 yang ada di Wilayah Kerja puskesmas Walantaka. Penelitian ini bertujuan untuk mengetahui fakor prilaku yang mempengaruhi status karies gigi pada siswa sekolah dasar dengan desain cross sectional dan alat yang digunakan untuk mengumpulkan data berupa kuesioner. Hasil Penelitian menunjukkan bahwa 238 (69,4%) dari 343 anak yang menderita karies gigi, jenis kelamin terbanyak adalah perempuan 114 (74%). Dari penelitian ini faktor yang paling beresiko terhadap status karies gigi siswa adalah Cara anak menyikat gigi (PR = 2,557), Frekuensi sering mengkonsumsi jajanan manis (PR = 2,197), Pekerjaan ibu (PR = 2,051) dan Frekuensi sikat gigi (PR = 1,782). Usaha untuk menurunkan angka karies gigi pada anak yaitu dengan meningkatkan kegiatan program Usaha Kesehatan Gigi Sekolah, melalui promotif dan preventif tentang kesehatan gigi dan mulut, melalui pemeriksaan gigi dan mulut secara rutin ke sekolah-sekolah sehingga dapat diambil tindakan untuk mencegah dan menanggulangi masalah kesehatan gigi dan mulut pada anak sekolah.

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Dental caries is a disease that is common in children of primary school age in Indonesia. Although no cause of death, as a result of tooth decay and tooth supporting tissues, may lower a person's level of productivity, because of the biological aspects will be felt sick, so the learning activities, eat and sleep undisturbed.

The research was conducted at the State Primary School Grade 1st in the Work Area Walantaka clinic. This study aims to determine the behavior factor affect the status of dental caries in primary school students with the cross- sectional design and the tools used to collect data in the form of a questionnaire.

Research results showed that 238 (69.4%) of 343 children who suffer from dental caries, is the most sex women 114 (74%). From this study the risk factors for dental caries status of students is the way children brushing their teeth (PR = 2.557), frequency often consume sugary snacks (PR = 2.197), maternal work (PR = 2.051) and frequency toothbrush (PR = 1.782).

Efforts to reduce the number of dental caries in children by increasing activity UKGS program, through promotion and prevention of oral health through oral examination regularly to schools so that they can take action to prevent and addressthe problem of oral health on school children. "

"Karies dapat mengenai gigi sulung dan gigi tetap. Gigi sulung lebih rentan terhadap terjadinya karies karena struktur dan morfologinya yang berbeda dari gigi tetap. Bakteri Mutans Streptococci yang paling banyak berada dalam rongga mulut manusia adalah S. mutans dan S. sobrinus. S.mutans merupakan spesies bakteri utama yang mengawali karies gigi manusiadan patogen yang paling umum terdapat pada plak gigi. Ibu sebagai pengasuh utama sering dianggap menjadi sumber infeksi terbesar bagi anak yang memiliki S.mutans dan atau S.sobrinus. Penelitian ini bertujuan untuk mengetahui adanya hubunganS.mutans serotipe c dan S.sobrinus serotipe d antara ibu-anak serta mengetahui hubungan status karies diantaranya. Sampel penelitian diambil dari plak gigi 48 pasangan ibu dan anaknya yang menderita karies dan diperiksa menggunakan PCR (Polimerase Chain Reaction).Hasil penelitian menunjukkan bahwa jumlah S.sobrinus serotipe d mendominasi keseluruhan subyek penelitian. Terdapat hubungan yang tidak bermakna antara status karies anak-ibu dengan distribusi S.mutans serotipe c danS.sobrinus serotipe d. Uji korelasi skor def-t dengan DMF-T menunjukkan adanya hubungan yang bermakna, yang berarti bahwa def-t anak akan meningkat seiring dengan kenaikan DMF-T ibu. Hubungan S.mutans serotipe c antara anak dan ibu ditemukan tidak bermakna dengan hubungan sangat lemah sedangkan hubungan S.sobrinus serotipe d antara anak dan ibu bermakna walau hubungannya lemah. Perilaku dan pengetahuan kesehatan gigi ibu berhubungan dengan pengalaman karies gigi anak melalui transmisi S.mutans dan S.sobrinus secara vertikal.

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Dental caries may occur in the primary and permanent teeth. Primary teeth are more susceptible to caries due to the different structure and morphology compared to permanent teeth . The most bacteria of Mutans Streptococci found in the human oral cavity are S. mutans and S. sobrinus .While S. mutans is also the main species of bacteria that initiate dental caries humans and the most common pathogens found in dental plaque. Mother as the primary caregiver is often considered to be the biggest source of infection for children with S. mutans and or S.sobrinus. This study aims to investigate the relationship of serotypes c S. mutans and serotype d S.sobrinusbetween mother - child relationship and to know the status of caries among others . Samples were taken from dental plaque of 48 pairs mothers and their children who suffer from caries and examined using PCR (Polimerase Chain Reaction) . Results indicate that the number of serotype d S. sobrinus dominates whole subject of research . There is no significant relationship between caries status of the child - mother with the distribution of serotype c S. mutans and serotype d S.sobrinus. Correlation test scores def-t with DMF-T showed a significant relationship, which means that def-t will increase along with the increase of DMF-T. S.mutans serotypec relationship between the child and the mother was found to be significantly associated with a very weak relationship whereas S.sobrinus serotypes d relationship between the child and mother meaningful relationship despite weak . Behavioral and dental health knowledge mother dealing with dental caries experience of children through vertical transmission of S. mutans and S.sobrinus ."

"Tujuan penelitian ini untuk mengetahui faktor-faktor yang berhubungan dengan karies gigi pada murid SD di Kota Jambi Tahun 2014. Penelitian menggunakan desain cross sectional. Hasil penelitian diperoleh 59,3% responden karies gigi. Susunan gigi dan derajat keasaman saliva merupakan faktor yang berhubungan dengan karies gigi, dimana responden dengan derajat keasaman saliva yang tidak normal berisiko terjadi karies gigi 2,6 kali dibanding yang normal setelah dikontrol oleh susunan gigi dan kebersihan gigi dan mulut. Susunan gigi tidak teratur berisiko terjadi karies gigi 2,6 kali dibanding yang teratur, setelah dikontrol oleh derajat keasaman saliva dan kebersihan gigi dan mulut. Disarankan untuk meningkatkan upaya promotif dan preventif pada murid SD di Kota Jambi.

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The purpose of this study to determine the factors associated with dental caries in primary school students in the city of Jambi 2014. The study used a cross-sectional design. The results were obtained 59.3 % of respondents dental caries. Arrangement of the teeth and saliva acidity is a factor associated with dental caries, where respondents with the degree of acidity abnormal salivary caries risk occurs 2.6 times compared to normal after controlled by the arrangement of teeth and oral hygiene. The composition of irregular teeth caries risk occurs 2.6 times compared to regular, once controlled by the acidity of saliva and oral hygiene. It is recommended to increase the promotive and preventive primary school students in the city of Jambi."

"Penyakit gigi yang banyak diderita oleh masyarakat adalah karies dan penyakit periodontal. Pemeriksaan gigi yang dilakukan di SD Negeri 04 Jati Asih Kota Bekasi menunjukkan bahwa dari 405 siswa yang diperiksa ditemukan sebesar 352 (86,9 % ) menderita penyakit gigi dan mulut, dan karies gigi ditemukan sebanyak 164. Karies gigi merupakan penyakit yang dapat dicegah dengan menanamkan perilaku pemeliharaan kesehatan gigi sejak usia dini.Tujuan penelitian ini adalah untuk mengetahui perilaku pencegahan karies dan faktorfaktor yang berhubungan pada siswa SD Negeri 04 Jati Asih Kota Bekasi tahun 2011. Penelitian ini merupakan penelitian deskriptif dengan disain cross sectional dimana variabel dependen (Perilaku pencegahan karies) dan variabel independen (Jenis kelamin, pengetahuan, ketersediaan sarana, dukungan orang tua dan dukungan guru) diteliti pada waktu yang bersamaan. Pengambilan sampel dengan cara Purposive yaitu berdasarkan pertimbangan bahwa penilaian perilaku benar menyikat gigi dinilai pada penduduk usia 10 tahun keatas, target yang ditetapkan oleh Depkes RI untuk penilaian DMF-T pada anak yaitu usia 12 tahun, dan pada usia 10-12 tahun seorang anak sudah mempunyai minat terhadap kehidupan praktis sehari-hari yang konkrit, realistik, ingin tahu dan ingin belajar, dan setelah usia 11 tahun anak sudah dapat menyelesaikan tugasnya tanpa tergantung orang lain. Sampel yang diambil adalah seluruh siswa kelas IV,V dan VI berjumlah 175 orang. Pengumpulan data dengan cara membagikan kuesioner yang diisi sendiri oleh responden.Hasil penelitian menemukan bahwa siswa yang berperilaku buruk dalam pencegahan karies gigi sebesar 57,1 %. Variabel yang secara statistik berhubungan dengan perilaku pencegahan karies yaitu variabel pengetahuan dan dukungan orang tua. Sedangkan variabel yang paling dominan pengaruhnya terhadap perilaku pencegahan karies adalah dukungan orang tua.

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Dental disease which most suffered by community were caries and periodontal disease. Dental investigation which performed in public Primary School 04 Jati Asih Bekasi City found that as much as 352 students (86,9%) suffer from dental disease and mouth one, and 164 students for caries of overall 405 students who were investigated. Caries was a disease which could be prevented by maintaining good behavior of dental health caring since the early age.

This study aims to find out about behavior of caries prevention and related factors to students of State Primary School 04 Jati Asih Bekasi City year 2011. It is a descriptive study using cross sectional design, which of dependent variable (caries prevention behavior) and independent variables (sex, knowledge, availability of facility, parent and teacher support) were inspected at the same time. Samples were obtained by purposive way, that is, based on consideration that good behavior of brushing teeth evaluated at people at age above 10 years old, and a child at age 10-12 years has had interest to concrete daily practical life, realistic, curious and study interest, after they are 11 years old, they have been able to do their own tasks by themselves without depend on other people. Taken samples are all of students of fourth, fifth and sixth class amount 175 students. Data were collected by giving a questionnaire to be filled by students.

Result study find that students which have bad behavior in preventing of caries as much as 57.1%. Statistically variables related to caries prevention behavior are knowledge and parent support. While the most influenced dominant variable to caries prevention behavior is parent support."

"Latar Belakang: Penyakit kardiovaskular merupakan penyebab kematian tertinggi di Indonesia. Karies gigi dan penyakit periodontal merupakan penyakit kronis terbesar di dunia termasuk di Indonesia. Tujuan penelitan untuk menguji hubungan antara karies gigi, penyakit periodontal dengan penyakit kardiovaskular pada usia produktif di Indonesia. Metode: Studi potong lintang menggunakan data survei kesehatan nasional (RISKESDAS) untuk menganalisis hubungan antara karies gigi, penyakit periodontal dengan penyakit kardiovaskular yang mempertimbangkan faktor-faktor risiko penyakit kardiovaskular yang lain. Analisis dibatasi pada populasi yang memiliki data pemeriksaan klinis gigi dan berusia 20-64 tahun. Ada 24.325 subjek masuk dalam analisis. Analisis chi-square digunakan untuk menilai hubungan bivariat, dan analisis regresi logistik ganda untuk menilai hubungan karies gigi, penyakit periodontal dengan penyakit kardiovaskular yang dikontrol kovariat untuk memperoleh hubungan murni. Hasil: Ada hubungan bermakna secara statistik (p < 0,05) antara karies gigi dengan penyakit kardiovaskular setelah dikontrol variabel umur (AOR 2,255;95%CI:1,333-3,814). Ada hubungan bermakna secara statistik (p < 0,05) antara kehilangan perlekatan periodontal dengan penyakit kardiovaskular setelah dikontrol dengan umur, gangguan emosional, diabetes dan hipertensi (AOR1,454;95%CI:1,129-1,873). Kesimpulan: Penelitian ini menambahkan bukti faktor risiko utama yang dapat dimodifikasi pada penyakit kardiovaskular.

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Background: Cardiovascular diseases is the highest cause of death in Indonesia. Dental caries and periodontal diseases are the biggest chronic diseases in the world, including in Indonesia. The research aimed to examine the relationship between dental caries, periodontal disease, and cardiovascular disease in productive age in Indonesia. Methods: A cross-sectional study using national health survey data (RISKESDAS) to analyze the association between dental caries, periodontal disease, and cardiovascular disease considering other risk factors for cardiovascular disease. Analysis was restricted to the population who had dental clinical examination data and were aged 20-64 years. There were 24,325 subjects included in the analysis. Chi-square analysis was used to assess the bivariate relationship, and multiple logistic regression to assess the relationship between dental caries, periodontal disease, and cardiovascular disease which were covariate controlled to obtain a pure relationship. Results: There was a statistically significant relationship (p <0.05) between dental caries and cardiovascular disease after controlling for age (AOR 2.255;95% CI:1.333-3.814). There was a statistically significant relationship (p <0.05) between periodontal attachment loss and cardiovascular disease after controlling for age, emotional disturbances, diabetes, and hypertension (AOR1.454;95%CI:1.129-1.873). Conclusion: This study adds to the evidence of major modifiable risk factors in cardiovascular disease"

"Study on the structure and the mechanism of the formation of early caries is an important premise for evaluatingthe caries-preventive methods. Objective: To describe micrograph images of experimental carious lesionsat early stage in permanent teeth in Vietnamese. Methods: There were 60 permanent extracted premolars frompatients aged 18-25 used in this study. After cleaning and removing the remaining soft tissue, each tooth waspainted with acid-resistant coating leaving an enamel window of approximately 1 × 1mm2 on the buccal surface.The artificial carious lesion was performed by soaking the teeth for 96 hours in the demineralization solution andevaluated using the ICDAS criteria. The tooth specimen was observed under a scanning electronic microscope(SEM). Results: The experiment resulted 66.7% of ICDAS 1 and 33.3% ICDAS 2 carious lesions. The meandepth and area of the lesions were 107.6µm and 1.14 µm2, respectively. The difference in depth and area of lesionsbetween group ICDAS 1 and ICDAS 2 was significantly statistical with p=0.0001. The micrographs showed thatafter being soaked in demineralization solution, enamel surface became rough, enamel rods lost the minerals inthe body more than in the sheath, cross-sectional images showed widened gaps between the rods due to demineralization.There was a difference in demineralization degree between group ICDAS 1 and 2. Conclusion: Theimage of carious lesions was gained after the teeth were soaked in demineralization solution. It showed differentcharacteristics of the resulted lesions based on ICDAS criteria for early carious lesions using scanning electronmicroscope."

"Latar belakang: Indonesia memiliki jumlah lansia yang banyak dan akan terus bertambah setiap tahunnya. Karies gigi dan karies akar merupakan masalah kesehatan gigi dan mulut yang sering dialami oleh lansia. Perilaku kesehatan gigi dan mulut merupakan salah satu faktor penyebab karies yang dapat dimodifikasi. Tujuan penelitian ini adalah untuk mengetahui hubungan perilaku kesehatan gigi dan mulut pada status karies gigi dan akar lansia di tahun 2018. Metode: Desain studi cross-sectional menggunakan data Riskesdas 2018. Jumlah sampel sebanyak 4678 subjek usia 60 tahun ke atas. Hasil: Prevalensi karies gigi dan karies akar lansia Indonesia secara berturutturut adalah 95,7% dan 95,5%. Lansia Indonesia memiliki skor rerata decay, missing, filled teeth (DMFT) sebesar 15,6 (SE 0,1) dan skor median root caries index (RCI) sebesar 38,9% (IQR 10%,77,8%). Sembilan dari sepuluh lansia Indonesia tidak mengunjungi tenaga medis gigi dalam setahun terakhir. Uji korelasi Spearman menunjukkan bahwa perilaku menyikat gigi, konsumsi makanan manis, konsumsi minuman manis, dan berkunjung ke tenaga medis gigi memiliki korelasi (p < 0,05) pada skor rerata DMFT lansia Indonesia. Hal yang mirip juga terlihat pada skor median RCI lansia Indonesia, kecuali pada korelasinya dengan makanan manis. Selain itu, perbedaan skor rerata DMFT terlihat antara kategori sosiodemografi usia, tingkat pendidikan, status ekonomi, pekerjaan dan daerah domisili. Perbedaan status karies akar juga terlihat antara kategori sosiodemografi usia, tingkat pendidikan, status ekonomi, daerah domisili, dan jaminan kesehatan. Kesimpulan: Terdapat hubungan antara perilaku kesehatan gigi dan mulut dengan status karies lansia di Indonesia. Program preventif karies, peningkatan kunjungan dokter gigi, dan adanya kebijakan pemerintah untuk menurunkan konsumsi gula pada lansia disarankan.

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Background: Indonesia has a large number of elderly and will continue to grow every year. Dental caries and root caries are dental and oral health problems that are often experienced by the elderly. Dental and oral health behavior is one of the modifiable causes of caries. The purpose of this study was to determine the relationship between dental and oral health behavior on the dental caries status and roots of the elderly in 2018. Methods: Cross-sectional study design using Riskesdas 2018 data. The number of samples was 4678 subjects aged 60 years and over. Results: The prevalence of dental caries and root caries in the Indonesian elderly were 95.7% and 95.5%, respectively. Indonesian elderly have a mean decay, missing, filled teeth (DMFT) score of 15.6 (SE 0.1) and a median root caries index (RCI) score of 38.9% (IQR 10%, 77.8%). Nine out of ten Indonesian seniors did not visit dental personnel in the past year. Spearman correlation test showed that the behavior of brushing teeth, consumption of sweet foods, consumption of sugary drinks, and visits to dental medical personnel had a correlation (p < 0.05) on the average DMFT score of the Indonesian elderly. The same thing is also seen in the median RCI score of the Indonesian elderly, except for the correlation with sweet foods. In addition, differences in DMFT mean scores were seen between sociodemographic categories of age, education level, economic status, occupation and area of ​​domicile. Differences in root caries status were also seen between sociodemographic categories of age, education level, economic status, area of ​​domicile, and health insurance. Conclusion: There is a relationship between dental and oral health behavior and the caries status of the elderly in Indonesia. A caries prevention program, an increase in dentist visits, and a government policy to reduce sugar consumption in the elderly are recommended."

"Latar Belakang: Prevalensi karies gigi anak di Indonesia yang tinggi disebabkan karena perilaku ibu yang buruk dalam menjaga kebersihan gigi anaknya. Tujuan: Mengetahui peran lembar balik dan lembar evaluasi KMGS dalam merubah perilaku ibu terhadap kesehatan gigi mulut balita. Metode: melakukan pelatihan kader menggunakan lembar balik, pemeriksaan kesehatan gigi mulut balita, kemudian dievaluasi setelah diintervensi menggunakan lembar evaluasi KMGS. Hasil: terdapat peningkatan (57,15%) bermakna (p<0,05) perilaku ibu pada kelompok intervensi, penurunan bermakna (p<0,05) indeks plak (60%) dan skor kematangan plak (25,71%) anak. Kesimpulan: media lembar balik efektif meningkatkan perilaku ibu.

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Background: The high prevalence of early childhood caries in Indonesia is caused bymother’s behaviour of maintaining children’s oral hygiene.

Purpose: to know aboutthe role of flipchart and KMGS in maintaining mother's behaviour toward children's dental health.

Methods: training for cadre by using flipchart, examination of children's dental and oral health and evaluating after the intervention by using KMGS.

Results: there’s a significant improvement (57.15%) of mother’s behaviour (p<0,050) in intervention group, a significant reduction (p<0.05) of child plaque index (60%) and plaque maturity score (25.71%).

Conclusion: flipchart is an effective media to improve mother’s behaviour."

"Latar Belakang: Berdasarkan Riskesdas 2013 lebih dari seperempat penduduk Indonesia (25,9%) mempunyai masalah kesehatan gigi dan mulut dengan karies gigi sebagai masalah yang memiliki prevalensi tertinggi di angka 53,2%. Salah satu penyebabnya adalah plak gigi, yang dapat dihilangkan dengan perilaku menyikat gigi. Waktu menyikat gigi yang selama ini dianjurkan adalah setelah sarapan dan sebelum tidur. Namun, ditemukan kerugian dan ketidak efektifan dari waktu menyikat gigi tersebut, sehingga dibutuhkan waktu menyikat gigi lain yang dapat menghilangkan plak secara efektif. Tujuan: Mengetahui perbedaan perlakuan menyikat gigi sebelum dan setelah makan terhadap derajat keasaman (pH) plak gigi sebagai faktor risiko karies. Metode: Penelitian ini menggunakan pendekatan Before-After Randomized Crossover Trial. Subjek penelitian adalah 20 mahasiswa/i FKG UI dengan rentang umur 19-22 tahun yang dipilih melalui metode purposive sampling. Penelitian dilakukan dengan membandingkan pH plak pada perlakuan menyikat gigi sebelum dan setelah makan. Perlakuan dilakukan sekali seminggu selama 2 minggu, dengan empat kali pengambilan data setiap perlakuannya, yaitu T0 (sebelum dilakukan perlakuan apapun/baseline), T1 (setelah makan/ setelah sikat gigi sebelum makan), T2 (setelah makan/ setelah sikat gigi setelah makan), dan T3 (setelah 6 jam). Subjek diambil sampel derajat keasaman (pH) plaknya menggunakan digital pH meter Horiba LAQUAtwin. Sample plak diambil di gigi 11-21 dengan menggunakan sample sheet sekali pakai. Hasil: Kedua kelompok sama-sama mengalami penurunan rata-rata pH plak setelah makan dan setelah enam jam paska perlakuan terakhir, serta mengalami kenaikan rata-rata pH plak setelah sikat gigi. Pada kelompok perilaku menyikat gigi sebelum makan rata-rata pH plak pada awal pemeriksaan adalah 7,32 dan turun menjadi 7,27 setelah 6 jam. Sedangkan pada kelompok perilaku menyikat gigi setelah makan rata-rata pH plak pada awal pemeriksaan yaitu 7,49 turun menjadi 7,41 setelah 6 jam. Kesimpulan: Tidak terdapat perbedaan yang bermakna antara perlakuan menyikat gigi sebelum dan setelah makan terhadap pH plak.

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Background: According to the 2013 Basic Health Research, more than a quarter of Indonesia's population (25.9%) have dental and oral health problems, of which the highest prevalence is held by dental caries at the rate of 53,2%. One of the causes of caries is dental plaque which can be removed by tooth brushing. Most recommended time for tooth brushing is twice a day, after breakfast and before going to bed. However, the ineffectiveness of those brushing time is found. Therefore, the effective time to tooth brushing is needed. Objective: To determine the effect of before-eating tooth and after-eating tooth brushing on the hydrogen-ion concentration (pH) of dental plaque as caries risk factor. Methods: This study used the Before-After Randomized Crossover Trial approach. The research subjects were 20 FKG UI students with an age range of 19-22 years selected through a purposive sampling method. The study was conducted by comparing the pH of plaque to the treatment of tooth brushing before and after eating. The treatment is done once a week for 2 weeks, with four times data collections, there are T0 (before any treatment / baseline), T1 (after eating / after brushing before eating), T2 (after eating / after brushing after eating) , and T3 (after 6 hours). The subjects would be sampled the acidity degree (pH) of dental plaque using a digital pH meter called Horiba LAQUAtwin. Plaque samples were taken in teeth 11-21 using a disposable sheet sample. Results: Both groups experienced a decrease in the average pH of plaque after meals and after six hours, and experienced an increase in the average pH of plaque after brushing. In the group tooth brushing before eating the average pH of dental plaque at the beginning of the examination, which was 7.32, dropped to 7.27 after 6 hours. While in the group of brushing behavior after eating the average pH of plaque at the beginning of the examination, which was 7.49, dropped to 7.41 after 6 hours. Conclusion: There was no significant difference between the treatment of tooth brushing before and after eating to the pH of plaque."