The Oral Jewelry Safety Codex

The first research library dedicated to tooth gem safety and the materials used in tooth gem jewelry.

This research-driven guide helps technicians make informed decisions by examining how common tooth gem materials—such as gold alloys, crystal glass, diamonds, opals, acrylics, and other materials—behave in the oral environment.

By evaluating factors like biocompatibility, corrosion resistance, stability, and electrochemical behavior, the Codex provides a clearer framework for identifying safer tooth gem materials.

Many of the materials evaluated throughout the Codex reflect the same quality standards used in Tegan’s Tooth Gems professional jewelry collections..

✨Technician’s Safety Glossary✨

These terms form the core safety frameworks used throughout the Oral Jewelry Safety Codex to evaluate how tooth gem materials behave in the oral environment. Understanding them will make the research in each chapter easier to interpret.

Collapsible content

Biocompatibility

The ability of a material to perform its intended function without eliciting adverse biological responses, such as toxicity, inflammation, or immune-mediated hypersensitivity.

Porosity

The presence of microscopic voids in a material. In the oral cavity, high porosity creates “dead zones” that harbor bacteria, biofilms, and odors, increasing the risk of secondary caries and gingivitis.

Leaching

The process by which chemicals, ions, or compounds slowly migrate out of a material when it is exposed to an environment such as moisture, saliva, heat, or acidity. In an oral environment, leaching can occur when materials are exposed to saliva, enzymes, temperature changes, and mechanical wear, potentially allowing small amounts of substances from the material to be released over time.

Stability

The degree to which a material maintains its chemical and physical integrity under fluctuation pH levels and mechanical friction from the lips and tongue.

Conductivity

The rate at which a material transfers thermal energy. High conductivity can lead to tooth sensitivity.

Bio-inert.

The material does not interact with the body. It basically sits there and the body ignores it.

Irrandiance

The intensity of light delivered by a dental curing light. Because different materials respond to light intensity differently, a professional understanding of irradiance helps us understand exactly how various tooth gem materials react under heat and intense light to ensure a safe, successful bond.

✨Table Of Contents✨

Each chapter examines tooth gem jewelry materials to help technicians make educated purchasing decisions. Understanding what is in the materials used for tooth gems supports safer client outcomes and allows technicians to operate at a higher professional standard.

  • Chapter 1: Solid Gold Tooth Gems

    Solid gold is widely considered the most stable material used in tooth gem jewelry due to its corrosion resistance and long history of use in dental alloys. This chapter examines how 18k gold tooth gems behave in the oral environment, including their biocompatibility, electrochemical stability, and long-term durability when bonded to enamel.

  • Chapter 2: Diamond Tooth Gems

    Diamonds are often used in tooth gem jewelry because of their extreme hardness and chemical stability. This chapter explores how diamond tooth gems perform in the oral environment, evaluating their structural durability, surface stability, and long-term behavior when exposed to saliva, temperature changes, and daily mechanical stress.

  • Chapter 3: Lead-Free Crystal Glass Tooth Gems

    Lead-free crystal glass is one of the most common decorative materials used in professional tooth gem applications. This chapter examines how crystal glass tooth gems behave in the oral environment, focusing on chemical stability, surface durability, and how prolonged exposure to saliva and pH fluctuations may affect their long-term performance.

  • Chapter 4: Moissanite Tooth Gems

    Moissanite is a lab-created gemstone made from silicon carbide, valued for its exceptional hardness and thermal stability. This chapter explores how moissanite tooth gems perform in the oral environment, examining their resistance to corrosion, structural durability, and long-term material stability when bonded to enamel.

  • Chapter 5: Natural & Synthetic Opal Tooth Gems

    Opals are prized for their unique color play, but their internal structure can vary significantly between natural and synthetic varieties. This chapter examines how opal tooth gems behave in the oral environment, focusing on hydration sensitivity, structural stability, and how prolonged exposure to saliva may influence their durability.

  • Chapter 6: PMMA / Acrylic Tooth Gems

    Many inexpensive tooth gem decorations are made from PMMA (acrylic) polymers, which are commonly used in jewelry and craft rhinestones. This chapter evaluates how acrylic tooth gems behave in the oral environment, examining material stability, surface degradation, and potential long-term risks when polymers are exposed to saliva, temperature shifts, and mechanical wear.

  • Chapter 7: Rose Gold Tooth Gems

    Rose gold alloys contain copper to produce their distinctive pink color, which alters how the metal behaves electrochemically in the oral environment. This chapter analyzes how rose gold tooth gems interact with saliva and other dental metals, evaluating corrosion potential, galvanic reactions, and material stability during long-term oral exposure.

  • Chapter 8: Cubic Zirconia Tooth Gems

    Cubic zirconia is widely used in tooth gem jewelry as a diamond simulant, but its performance in the oral environment depends on structural stability, hydrothermal resistance, and long-term surface behavior. This chapter examines how cubic zirconia tooth gems respond to saliva, pH shifts, and daily wear.

  • Chapter 9: Gold-Plated Metals

    Gold-plated jewelry may look identical to solid gold at first glance, but beneath the surface lies a core of reactive base metals. In the oral environment, friction, saliva, and chemical exposure can wear away the plating and expose those underlying alloys. This chapter explores the material science behind plated metals and the potential risks they introduce when used as tooth gems.

  • Chapter 10: Enameled Gems

    Chapter 10 explores the material science behind enameled tooth gems, revealing that many designs on the market use resin-based coatings rather than true glass enamel. While visually similar, these materials behave very differently in the oral environment—where saliva, enzymes, and pH fluctuations can lead to increased porosity, chemical leaching, and long-term degradation. This chapter breaks down how enamel type impacts safety, hygiene, and retention, giving tooth gem technicians the knowledge needed to make informed, safety-first decisions when selecting and placing enamel-based designs.

  • Chapter 11: Sterling Silver Tooth Gems

    Chapter 10 explores the material science behind enameled tooth gems, revealing that many designs on the market use resin-based coatings rather than true glass enamel. While visually similar, these materials behave very differently in the oral environment—where saliva, enzymes, and pH fluctuations can lead to increased porosity, chemical leaching, and long-term degradation. This chapter breaks down how enamel type impacts safety, hygiene, and retention, giving tooth gem technicians the knowledge needed to make informed, safety-first decisions when selecting and placing enamel-based designs.