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NCT Number: NCT06727110

Polymer Induced Liquid Precursor (PILP) in Adults in With Dentin Caries

The goal of this clinical trial is to learn if polymer-induced liquid precursor (PILP) can be used safely to treat dentin caries (cavities) in adults. The main question it aims to answer is: Is PILP (conditioner or liner) safe in adult teeth with dental caries? Researchers will compare PILP to a placebo (a look-alike substance that contains no drug) to see if PILP safely treats cavities in teeth.

Participants will: 1) Have PILP or placebo applied to their tooth prior to the placement of a filling in the tooth, 2) Complete two telephone calls within three months of filling placement and 3) Visit the clinic at three months and six months after the placement of the filling.

Recruiting

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Key information

Age range

18 year–64 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of California San Francisco, School of Dentistry

San Francisco, California, 94143, United States

Location status: Recruiting

Location contact

Jean Star, DDS, MPH

CONTACT

[email protected]

415-514-9768

Jean Star, DDS, MPH

PRINCIPAL_INVESTIGATOR

Jessica Snider, MBA

CONTACT

[email protected]

Ram Vaderhobli, DDS, MS

SUB_INVESTIGATOR

Stefan Habelitz, PhD

SUB_INVESTIGATOR

About this study

The proposed study is a first-in-human safety evaluation of Polymer-Induced Liquid Precursor (PILP)-releasing dental materials for the treatment of deep carious lesions in adult posterior teeth.

The study will enroll adult patients diagnosed with carious lesions involving the dentin. Participants will be randomly assigned to one of three intervention groups. The primary objective is to assess the safety of PILP application, with a hypothesis that PILP can be safely used without causing adverse events to the tooth or patient.

Participants will undergo a series of visits starting with a comprehensive screening and consent process, followed by the assigned dental procedure involving caries removal and restoration. Follow-up evaluations will occur at 48 hours, 1 month, 3 months, and 6 months post-procedure to monitor for any symptoms or adverse outcomes.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Stated willingness to comply with all study procedures and availability for the duration of the study
  • Male or female, aged 18 to sixty-four
  • In good general health as evidenced by medical history (ASA 1 or 2)
  • With at least one posterior tooth with caries to dentin
  • The tooth must have a pulpal diagnosis of pulpal health (no irreversible pulpitis or periapical radiolucency)
  • The tooth should have no existing restorations
  • The caries should be a Class I or class V single surface lesion
  • The tooth should be planned for restoration with intra-coronal restoration (composite or RMGI restoration)
  • The tooth should be deemed as needing a restoration based on ICDAS (International Caries Detection and Assessment System)

Exclusion criteria

Known allergic reactions to components of the study device

Treatment and study plan

PILP Cement

Device

PILP cement liner.

PILP Conditioner

Device

PILP solution.

Primary outcomes

  1. Pulpal response

    Time frame: Tooth vitality testing will occur approximatley 3 months and 6 months after placement of the restoration.

    Tooth vitality (pulpal response) after intervention.

Secondary outcomes

  1. Dental pain/sensitivity

    Time frame: Tooth pain will be assessed at 48 hours, 1 month, 3 month and 6 months after placement of the restoration.

    The dental pain/sensitivity assessment will include Visual Analog Scale (VAS) for dental pain.

  2. Gingival Inflammation

    Time frame: Gingival inflammation will be assed by intra-oral clinical exam at 3 and 6 months post restoration placement.

    Intra-Oral Assessment and Photographs will assess gingival inflammation (Löe-Silness gingival index).

  3. Periapical status

    Time frame: A dental radiograph of the tooth will be take at 3 and 6 months post restoration placement.

    Dental radiographs will assess periapical status (periapical index)

Study contacts

Contact information is provided by the study sponsor or research team.

Jean Star, DDS, MPH

CONTACT

[email protected]

415-514-9768

Jessica Snider, MBA

CONTACT

[email protected]

4155146994

Sponsors and collaborators

Lead sponsor

University of California, San Francisco

Other

Registry information

Official study title

Dentin Caries and Polymer-induced Liquid Precursor System (PILP): Adult Safety Study

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Dec 10, 2024
Registry last updated
Mar 6, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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