Free Practice Questions for UKOM DIII Kesehatan Gigi

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Key Facts: UKOM DIII Kesehatan Gigi Exam

CBT

Official exam delivery format

ukomnakes.kemdiktisaintek.go.id

Lifetime

STR validity under UU No. 17 Tahun 2023

UU No. 17 Tahun 2023 tentang Kesehatan

KMK 671/2020

Official standard of the dental therapist profession

Kemenkes RI Standar Profesi Terapis Gigi dan Mulut

PTGMI

Indonesian Dental Therapist Professional Association

ptgmi.or.id

UKOM DIII Kesehatan Gigi tests dental therapy graduates across scaling, prevention, basic restorative care, sterilization, and public school dental programs. This is an independent 88-question English-language MCQ practice bank by OpenExamPrep.

Sample UKOM DIII Kesehatan Gigi Practice Questions

Try these sample questions to review concepts for the UKOM DIII Kesehatan Gigi exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 88+ question experience with AI tutoring.

1A 24-year-old patient visits the Puskesmas dental clinic for a routine check-up. The dental therapist (Terapis Gigi dan Mulut) performs an oral hygiene assessment using the Simplified Oral Hygiene Index (OHI-S) by Greene and Vermillion. Which set of tooth surfaces represents the standard six index surfaces examined for OHI-S?

A.Teeth 16 buccal, 11 lingual, 26 buccal, 36 lingual, 31 labial, 46 lingual

B.Teeth 16 buccal, 11 labial, 26 buccal, 36 lingual, 31 labial, 46 lingual

C.Teeth 16 lingual, 11 labial, 26 lingual, 36 buccal, 31 lingual, 46 buccal

D.Teeth 17 buccal, 21 labial, 27 buccal, 37 lingual, 41 labial, 47 lingual

Explanation: Greene and Vermillion's Simplified Oral Hygiene Index (OHI-S) evaluates six index tooth surfaces: the facial/buccal surface of the maxillary right first molar (16), the labial surface of the maxillary right central incisor (11), the facial/buccal surface of the maxillary left first molar (26), the lingual surface of the mandibular left first molar (36), the labial surface of the mandibular left central incisor (31), and the lingual surface of the mandibular right first molar (46).

2During the oral examination of a 17-year-old high school student, the Terapis Gigi dan Mulut evaluates the buccal surface of tooth 16 using a dental explorer. Soft plaque and food debris cover more than one-third but not more than two-thirds of the exposed tooth surface. What is the Debris Index (DI) score for this individual tooth surface according to Greene and Vermillion's criteria?

A.Score 0

B.Score 1

C.Score 2

D.Score 3

Explanation: Under Greene and Vermillion's Debris Index criteria: Score 0 indicates no debris or stain; Score 1 indicates soft debris covering not more than one-third of the tooth surface, or extrinsic stain without debris; Score 2 indicates soft debris covering more than one-third but not more than two-thirds of the exposed tooth surface; and Score 3 indicates soft debris covering more than two-thirds of the exposed tooth surface.

3While examining the lingual surface of tooth 36 with a periodontal probe, the Terapis Gigi dan Mulut detects supragingival calculus covering not more than one-third of the exposed tooth surface, with no subgingival calculus present. What is the Calculus Index (CI) score assigned to this surface?

A.Score 1

B.Score 2

C.Score 3

D.Score 0

Explanation: According to the Simplified Calculus Index (CI-S) criteria: Score 0 indicates no calculus present; Score 1 indicates supragingival calculus covering not more than one-third of the exposed tooth surface; Score 2 indicates supragingival calculus covering more than one-third but not more than two-thirds, or the presence of individual flecks of subgingival calculus around the cervical portion; and Score 3 indicates supragingival calculus covering more than two-thirds, or a continuous heavy band of subgingival calculus.

4A 35-year-old male presents for dental prophylaxis. The dental therapist records the following scores across the six index teeth: Debris scores = 1, 2, 2, 1, 1, 2 (Total = 9); Calculus scores = 1, 1, 0, 1, 1, 2 (Total = 6). All six index teeth are present and examined. What is the patient's Simplified Oral Hygiene Index (OHI-S) score and corresponding oral hygiene status?

A.OHI-S = 1.5, representing Good (Baik) oral hygiene

B.OHI-S = 2.0, representing Moderate (Sedang) oral hygiene

C.OHI-S = 3.0, representing Poor (Buruk) oral hygiene

D.OHI-S = 2.5, representing Moderate (Sedang) oral hygiene

Explanation: Debris Index (DI-S) = Total debris score / 6 = 9 / 6 = 1.5. Calculus Index (CI-S) = Total calculus score / 6 = 6 / 6 = 1.0. OHI-S = DI-S + CI-S = 1.5 + 1.0 = 2.5. Greene and Vermillion categorize OHI-S scores into: Good (Baik) = 0.0 - 1.2; Moderate (Sedang) = 1.3 - 3.0; Poor (Buruk) = 3.1 - 6.0. An OHI-S of 2.5 falls into the Moderate (Sedang) category.

5A 42-year-old female presents for oral health screening. During the OHI-S examination, the dental therapist observes that tooth 16 has been extracted due to severe dental caries, while tooth 17 is fully erupted and sound. Tooth 18 is absent. What is the correct substitution protocol for the maxillary right posterior index tooth?

A.Exclude the maxillary right posterior quadrant and divide total scores by 5

B.Examine the buccal surface of the adjacent second permanent molar (tooth 17)

C.Examine the lingual surface of tooth 15 as the immediate anterior neighbor

D.Examine the occlusal surface of tooth 14

Explanation: In Greene and Vermillion's OHI-S methodology, when a primary index first molar is missing, crowned, or non-restorable, the adjacent second permanent molar in the same quadrant (tooth 17 for tooth 16, tooth 27 for tooth 26, tooth 37 for tooth 36, tooth 47 for tooth 46) is examined on the same designated surface (buccal for maxillary molars, lingual for mandibular molars).

6In an oral epidemiological survey conducted by a Puskesmas dental team, the dental therapist records the DMF-T index for adult villagers. What do the components of the DMF-T index specifically represent?

A.Decayed, Missing due to caries, and Filled permanent teeth

B.Decayed, Missing due to trauma, and Fractured permanent teeth

C.Decalcified, Malpositioned, and Fluorosed primary teeth

D.Defective, Mobile, and Fissured permanent teeth

Explanation: The DMF-T index (introduced by Klein, Palmer, and Knutson) evaluates permanent dentition caries experience: 'D' represents Decayed teeth with active untreated caries; 'M' represents Missing teeth extracted specifically due to dental caries; and 'F' represents Filled teeth with sound restorations and no secondary caries.

7A 22-year-old university student is examined at the dental clinic. Examination reveals: tooth 16 has untreated occlusal dentinal caries; tooth 24 was extracted 2 years ago for orthodontic reasons; tooth 36 was extracted due to non-restorable dental caries; tooth 46 has an intact amalgam restoration with no recurrent caries; tooth 48 is congenitally missing; and tooth 26 has an untreated proximal carious lesion. All other teeth are sound. What is the patient's DMF-T score?

A.DMF-T = 2 (D=1, M=0, F=1)

B.DMF-T = 3 (D=2, M=0, F=1)

C.DMF-T = 4 (D=2, M=1, F=1)

D.DMF-T = 5 (D=2, M=2, F=1)

Explanation: D (Decayed) = 2 teeth (teeth 16 and 26). M (Missing due to caries) = 1 tooth (tooth 36). Tooth 24 was extracted for orthodontic purposes and tooth 48 is congenitally missing, so neither counts towards the 'M' score. F (Filled) = 1 tooth (tooth 46). DMF-T = D + M + F = 2 + 1 + 1 = 4.

8A 5-year-old child accompanied by her mother undergoes a dental assessment at the Posyandu. Clinical charting shows: teeth 51 and 52 have active untreated caries; tooth 64 has a sound glass ionomer cement (GIC) restoration; tooth 74 has severe crown breakdown with non-vital necrotic pulp indicated for extraction; and tooth 84 has sound enamel. What is the child's def-t score?

A.def-t = 3 (d=1, e=1, f=1)

B.def-t = 4 (d=2, e=1, f=1)

C.def-t = 5 (d=3, e=1, f=1)

D.def-t = 2 (d=2, e=0, f=0)

Explanation: In the def-t index for primary teeth: 'd' (decayed) = 2 teeth (teeth 51 and 52); 'e' (indicated for extraction due to caries) = 1 tooth (tooth 74); 'f' (filled without recurrent caries) = 1 tooth (tooth 64). def-t = d + e + f = 2 + 1 + 1 = 4.

9An 8-year-old boy presents for screening in the UKGS program. Clinical examination reveals: permanent tooth 16 has occlusal caries; permanent tooth 26 is sound; primary tooth 55 has secondary caries around an old restoration; primary tooth 65 was extracted last month due to caries; primary tooth 75 has a sound composite restoration; permanent tooth 36 is sound; and permanent teeth 11 and 21 are erupting normally without caries. How should the dental therapist record the caries status using permanent and primary indices?

A.DMF-T = 0; def-t = 4

B.DMF-T = 2; def-t = 1

C.DMF-T = 1; def-t = 1

D.DMF-T = 1; def-t = 3

Explanation: In mixed dentition, permanent and primary teeth must be scored independently: Permanent teeth: tooth 16 is decayed (D=1), while 26, 36, 11, and 21 are sound, giving DMF-T = 1 (D=1, M=0, F=0). Primary teeth: tooth 55 has caries (d=1); tooth 65 was extracted due to caries (e=1); tooth 75 has a sound filling (f=1), giving def-t = 1 + 1 + 1 = 3.

10According to KMK No. HK.01.07/MENKES/671/2020 on the Professional Standards of Dental Therapists, what is the correct sequential order of the Dental Therapy Care Process (Proses Asuhan Kesehatan Gigi dan Mulut)?

A.Pengkajian (Assessment) -> Diagnosis Asuhan -> Perencanaan (Planning) -> Implementasi -> Evaluasi & Dokumentasi

B.Diagnosis Asuhan -> Pengkajian -> Implementasi -> Perencanaan -> Evaluasi & Dokumentasi

C.Pengkajian -> Perencanaan -> Implementasi -> Diagnosis Asuhan -> Dokumentasi

D.Anamnesis -> Implementasi -> Pengkajian -> Evaluasi -> Diagnosis Asuhan

Explanation: The standardized clinical workflow for Pelayanan Asuhan Kesehatan Gigi dan Mulut consists of: (1) Pengkajian (comprehensive subjective and objective assessment), (2) Diagnosis Asuhan Kesehatan Gigi dan Mulut (formulation of dental hygiene/therapy diagnoses), (3) Perencanaan (individualized care planning and consent), (4) Implementasi (clinical preventive and curative delivery), and (5) Evaluasi dan Dokumentasi (evaluating treatment outcomes and formal clinical documentation).

About the UKOM DIII Kesehatan Gigi Exam

UKOM DIII Kesehatan Gigi is the mandatory national exit examination for dental therapy and oral health students in Indonesia, required for obtaining the professional certificate and STR Terapis Gigi dan Mulut.

Exam sponsor: Komite Nasional Uji Kompetensi Mahasiswa Bidang Kesehatan. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

The test evaluates oral health assessment, preventive procedures, limited curative interventions, clinic infection control, and community school dental programs.

Time Limit

Not published in official sources reviewed.

Passing Score

Not published in official sources reviewed.

Exam / Certification Fees

Rp 275,000 on the official registration page; verify the current cycle before payment.

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

28 of 88 practice questions

Asuhan Kesehatan Gigi dan Mulut (Dental Therapy Care Process)

Patient examination, OHI-S index calculation, DMF-T/def-t indices, dental hygiene diagnosis, care plan formulation, and clinical outcome documentation.

22 of 88 practice questions

Tindakan Preventif & Promotif Gigi (Oral Prophylaxis & Prevention)

Hand and ultrasonic scaling techniques, working angles, topical fluoride application (APF gel, varnish), pit and fissure sealants, and oral hygiene education.

15 of 88 practice questions

Tindakan Klinis Kuratif Terbatas (Restorative & Exodontia Scope)

Atraumatic Restorative Treatment (ART) cavity excavation, glass ionomer cement mixing and placement, topical anesthesia, and physiological primary tooth extraction.

14 of 88 practice questions

Pencegahan & Pengendalian Infeksi / PPI (Infection Control & Safety)

Personal protective equipment, instrument decontamination, packaging, autoclave sterilization monitoring, surface disinfection, and dental waste management.

9 of 88 practice questions

Manajemen Pelayanan Kesehatan Gigi & Regulasi (Public Health & Law)

Usaha Kesehatan Gigi Sekolah (UKGS), community dental outreach, Puskesmas dental administration, professional practice boundaries, and health law.

Preparing for the UKOM DIII Kesehatan Gigi Exam

What You Need to Know

Passing score: Not published in official sources reviewed.
Assessment: The test evaluates oral health assessment, preventive procedures, limited curative interventions, clinic infection control, and community school dental programs.
Time limit: Not published in official sources reviewed.
Exam / certification fees: Rp 275,000 on the official registration page; verify the current cycle before payment. Official sources

Using Our Practice Resources

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UKOM DIII Kesehatan Gigi: Suggested Study Strategy

1Understand how to calculate Greene & Vermillion's Simplified Oral Hygiene Index (OHI-S = DI-S + CI-S) using the six index teeth.

2Review the ideal instrument blade-to-tooth working angulation for scaling (60 to 80 degrees).

3Memorize the stages and criteria for Atraumatic Restorative Treatment (ART) using high-viscosity glass ionomer cement.

4Know the standard autoclave sterilization parameters (121 degrees Celsius at 15 psi for 15-20 minutes).

Frequently Asked Questions

What is UKOM DIII Kesehatan Gigi?

UKOM DIII Kesehatan Gigi is Indonesia's national competency exit examination for the Diploma III Kesehatan Gigi program. The separate DIV Terapi Gigi examination is not combined into this bank.

Why is the title Terapis Gigi dan Mulut used instead of Perawat Gigi?

Under Indonesian Law (UU No. 17 Tahun 2023 and KMK No. HK.01.07/MENKES/671/2020), the profession previously designated as Perawat Gigi was officially renamed to Terapis Gigi dan Mulut (Dental Therapist) to reflect its statutory scope of autonomous preventive, diagnostic, and limited curative clinical competencies.

What is the STR validity period under UU No. 17 Tahun 2023?

Under UU No. 17 Tahun 2023 tentang Kesehatan, the Surat Tanda Registrasi (STR Terapis Gigi dan Mulut) issued by Konsil Kesehatan Indonesia (KKI) is valid for life. The practice license (SIPTG) is issued by district health authorities and renewed every 5 years with SKP fulfillment.

Is this practice exam official?

No. This practice bank is an independent English-language educational resource developed by OpenExamPrep for self-study and clinical reasoning review. It is not affiliated with or endorsed by PTGMI or Kemdiktisaintek.