Professionalisation and technique of brushing teeth during studies: An analysis of dental students from different semesters

Professionalisation and technique of brushing teeth during studies: An analysis of dental students from different semesters - PUTZIS

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00031601

Enrollment

250

Registered

2023-04-17

Start date

2023-04-11

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

K03.6

Interventions

Group 1: First-year dental students (1st/2nd semester) are examined once with regard to their oral health and the specific toothbrushing behaviour to be observed. Group 2: Final year dental students (

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: dental students of JLU Gießen = 20 natural teeth

Exclusion criteria

Exclusion criteria: - Braces, retainers (top) - Oral piercing or tooth jewellery - Pregnancy and breastfeeding - Cognitive and physical limitations when brushing teeth (e.g. due to arm injury) - professional teeth cleaning or tooth polishing in the past 4 weeks - Smoker (> 5 cig./day) - No acute or chronic diseases affecting the oral cavity (e.g. diabetes, HIV, eating disorders, herpes) - Not taking medication for epilepsy, heart disease or immunosuppression.

Design outcomes

Primary

Measure	Time frame
Research question 1: 1.1 remaining plaque after brushing: % plaque after brushing (Marginal Plaque Index (MPI)). 1.2 gingivitis: papillary bleeding index (PBI) Research question 2: 2.1.a) tooth brushing behaviour: QIT-S; 2.2.a) % tooth contact time (TCC) of horizontal movements at vestibular surfaces. Research question 3: 3.1.a) Use of interdental hygiene devices (Yes/no) Research question 4: 4.1. remaining plaque after brushing: % plaque after brushing (MPI). Research question 5: 5.1. Self-perceived oral cleanliness questionnaire (SPOCd) 5.2. oral health-related self-efficacy expectancy (OHSEE) 5.3. dexterity (Grooved Pegboard)	—

Measure

Time frame

Research question 1: 1.1 remaining plaque after brushing: % plaque after brushing (Marginal Plaque Index (MPI)). 1.2 gingivitis: papillary bleeding index (PBI) Research question 2: 2.1.a) tooth brushing behaviour: QIT-S; 2.2.a) % tooth contact time (TCC) of horizontal movements at vestibular surfaces. Research question 3: 3.1.a) Use of interdental hygiene devices (Yes/no) Research question 4: 4.1. remaining plaque after brushing: % plaque after brushing (MPI). Research question 5: 5.1. Self-perceived oral cleanliness questionnaire (SPOCd) 5.2. oral health-related self-efficacy expectancy (OHSEE) 5.3. dexterity (Grooved Pegboard)

—

Secondary

Measure	Time frame
Research question 2: 2.1.b) % TCT oral surfaces 2.2.b) % TCT of horizontal movements at oral surfaces research question 3: 3.1.b) Number of interdental spaces processed; type of interdental hygiene devices used (dental floss, interdental brushes); correct performance of approximal hygiene 3.1.c) Self-report on frequency of use of approximal hygiene and type of interdental hygiene devices used. Question 4: 4.2. self-report on change in oral hygiene behaviour during the course of study Question 5: 5.3. motor skills via digistift	—

Measure

Time frame

Research question 2: 2.1.b) % TCT oral surfaces 2.2.b) % TCT of horizontal movements at oral surfaces research question 3: 3.1.b) Number of interdental spaces processed; type of interdental hygiene devices used (dental floss, interdental brushes); correct performance of approximal hygiene 3.1.c) Self-report on frequency of use of approximal hygiene and type of interdental hygiene devices used. Question 4: 4.2. self-report on change in oral hygiene behaviour during the course of study Question 5: 5.3. motor skills via digistift

—

Countries

Germany

Contacts

Public ContactRenate Deinzer

Institut für Medizinische Psychologie, Fachbereich 11 - Medizin, Justus-Liebig-Universität Gießen

renate.deinzer@mp.jlug.de+49 641 99 45681

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026