Research suggests that mastic gum demonstrates a range of potentially beneficial effects on oral health, with the body of evidence spanning two randomized controlled trials, multiple laboratory and clinical studies, and several narrative reviews, all pointing largely in a supportive direction. Studies indicate that mastic gum and its derivatives exhibit antimicrobial activity against key oral pathogens — including the cavity-associated bacterium Streptococcus mutans and the periodontal pathogen Porphyromonas gingivalis — and that mastic-based toothpastes and mouthwashes have been shown in clinical trials to reduce plaque, improve gingival health, and decrease halitosis, particularly in orthodontic patients. Additional research points to potential roles in dental implant protection, stimulation of salivary flow, support for dental pulp stem cell differentiation relevant to tissue regeneration, and even preliminary anticancer activity in oral tissues, though these findings largely come from in vitro or small-scale studies and require further validation. One mixed finding worth noting is that mastic toothpaste showed less enamel erosion protection compared to stannous fluoride toothpaste in an in vitro comparison, and reviewers across multiple papers emphasize that while the existing evidence is promising, larger and more rigorously designed clinical trials are needed before firm conclusions can be drawn about mastic gum's role in routine oral care.
Citations from PubMed and preprint sources. Match score (0-100) reflects automated search ranking, not clinical appraisal.
| Title | Type | Year | Direction | Match |
|---|---|---|---|---|
| Mastic (Pistacia lentiscus) gum and oral health: a state-of-the-art review of... | Review | 2023 | Supports | 99 |
| The effect of Chios mastic toothpaste on halitosis and oral hygiene in orthod... | RCT | 2025 | Supports | 98 |
| The effect of mastic mouthwash on halitosis and oral hygiene in orthodontic p... | RCT | 2023 | Supports | 98 |
| Antimicrobial Efficiency of Pistacia lentiscus L. Derivates against Oral Biof... | Review | 2023 | Supports | 97 |
| Antimicrobial Effects of Mastic Extract Against Oral and Periodontal Pathogens. | Other | 2017 | Supports | 97 |
| Antimicrobial effect of mastic gum methanolic extract against Porphyromonas g... | Other | 2006 | Supports | 97 |
| Comparison between mastic gum resin extract and chlorhexidine mouthwash in th... | Other | 2023 | Supports | 96 |
| Compounds from Olea europaea and Pistacia lentiscus inhibit oral microbial gr... | Other | 2019 | Supports | 93 |
| Whole mastic resin ameliorates halitosis and gingivitis in dogs and cats infe... | Other | 2025 | Supports | 92 |
| Effects of Stannous Fluoride Toothpaste and Chios Mastiha Toothpaste on the P... | Other | 2025 | Mixed | 90 |
| Effects of Pistacia lentiscus Leaf-Twig and Resin (Mastic) Oils on Salivary F... | Other | 2026 | Supports | 88 |
| Chios gum mastic enhance the proliferation and odontogenic differentiation of... | Other | 2024 | Supports | 88 |
| Review: Chios mastic gum: a plant-produced resin exhibiting numerous diverse ... | Review | 2012 | Supports | 88 |
| Kampo Therapies and the Use of Herbal Medicines in the Dentistry in Japan. | Review | 2019 | Supports | 87 |
| Antimicrobial effect of Pistacia atlantica leaf extract. | Other | 2016 | Supports | 82 |
| Leaves and Fruits Preparations of Pistacia lentiscus L.: A Review on the Ethn... | Review | 2021 | Supports | 78 |
| The effect of medicated, sugar-free chewing gum on plaque and clinical parame... | Systematic review | 2014 | Supports | 72 |