Biotechnology in Dentistry: A Review

Dr. Sidra Shafiq ¹*, Dr. Ashish Christian ², Dr. Manmeet Singh ³
 

1. BDS, Dow University of Oral Health and Sciences.
2. BDS, Sri Sai College of Dental Surgery and Hospital, Vikarabad, Telangana, India.
3. BDS, Sri Guru Ram Das Institute of Dental Sciences and Research, Amritsar, Punjab, India.  

*Correspondence to: Dr. Sidra Shafiq, BDS, Dow University of Oral Health and Sciences.

           
Copyright.

© 2025 Dr. Sidra Shafiq, This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Received: 31 October 2025

Published: 05 November 2025

Abstract

Biotechnology has emerged as a pivotal force in transforming various fields, including dentistry. This review highlights the innovative applications of biotechnological advances that enhance diagnostic accuracy, therapeutic effectiveness, and regenerative capabilities in dental practice. Key areas of focus include the development of advanced biomaterials, genetic engineering applications for disease prevention, stem cell research for tissue regeneration, and the impact of microbial biotechnology on oral health. Furthermore, digital advancements within biotechnology, such as 3D printing and tele-dentistry, are redefining patient care. The review underscores the synergistic potential between biotechnology and dentistry, paving the way for personalized and sustainable oral health solutions.

Keywords: Biotechnology, Dentistry, Application.

Introduction

The intersection of biotechnology and dentistry represents a revolutionary paradigm shift in oral health care. With the increasing prevalence of dental diseases and the demand for advanced treatment modalities, the integration of biotechnological innovations has become essential. This article aims to explore the multifaceted applications of biotechnology within the dental field, ranging from the development of novel biomaterials to gene and stem cell therapies. As our understanding of the oral microbiome and genetic factors associated with dental diseases evolves, opportunities for early diagnosis and targeted therapies expand. Moreover, the advent of digital technologies enhances the precision of dental interventions, ensuring better patient outcomes. By examining these advancements, this review seeks to provide insights into the future of dentistry and the continued role of biotechnology in fostering improvements in oral health.[1,2]

Biomaterials in Dentistry:

Biomaterials are essential components in restorative dentistry, where they are used to repair, replace, or regenerate damaged tissues and structures in the oral cavity. As dental technology progresses, so do the materials we use, primarily due to advancements in biotechnology that ensure these materials are not only effective but also biocompatible, meaning they can effectively interact with biological systems without causing adverse reactions. Two prominent categories of biomaterials in dentistry are nanomaterials and regenerative materials.

1. Nanomaterials: Nanomaterials are materials that have been engineered at the nanoscale, typically ranging from 1 to 100 nanometers. This scale allows for unique physical and chemical properties that differ significantly from their larger-scale equivalents. In dentistry, nanomaterials are designed to enhance the performance of dental restoratives in several ways:[3,4]

• Improved Strength: Nanotechnology increases the strength and durability of materials like composites and ceramics. For instance, incorporating nanoparticles can enhance the mechanical properties of composite resins, making them more resistant to wear and fracture.

• Aesthetic Appeal: The small size of nanoparticles allows for improved translucency and color matching in restorative materials. This means that dental restorations can better mimic the appearance of natural teeth, leading to more aesthetically pleasing results.
• Antimicrobial Properties: Some nanomaterials possess inherent antimicrobial properties, which can help reduce the risk of infection in dental applications. This is particularly beneficial in preventing secondary caries around restorations.

Overall, nanomaterials represent a significant advancement in dentistry, offering enhanced performance characteristics that meet the demands of both clinicians and patients.

1. Regenerative Materials: Regenerative materials focus on the repair and replacement of damaged or lost dental tissues, particularly in the context of periodontal diseases and bone defects. Key examples include:

• Hydroxyapatite: This naturally occurring mineral form of calcium apatite is a primary component of bone and teeth. Hydroxyapatite can be used in various applications, such as bone grafts and coating for dental implants, to promote osseointegration—the process where bone bonds with the implant surface. Its biocompatibility makes it an ideal choice for encouraging the regeneration of bone tissue in infraosseous defects.[5]
• Bioactive Glasses: These materials have gained attention for their ability to bond with tissues and promote healing. Bioactive glasses can stimulate the formation of a hydroxyapatite layer on their surface, enhancing their integration with surrounding bone and periodontal tissues. They are used in various dental applications, including root-end fillings, bone graft substitutes, and in the treatment of periodontal defects.[6]

By using regenerative materials, dental practitioners can facilitate the body's natural healing processes, leading to more effective treatments for conditions such as periodontal disease and bone loss. These materials not only aim to restore function but also support the body’s ability to regenerate damaged tissues.

Genetic Engineering and Oral Health: Genetic engineering offers promising avenues for preventing, diagnosing, and treating oral diseases. By manipulating genetic material, researchers and clinicians can explore new therapeutic strategies, enhance treatment effectiveness, and improve diagnostic accuracy. Two significant applications in this realm are gene therapy and salivary diagnostics.[7,8]

• Gene Therapy: Gene therapy involves modifying or manipulating genes to treat or prevent diseases. In the context of oral health, this approach holds potential, particularly for conditions such as periodontal disease—a chronic inflammatory disease that affects the supporting structures of the teeth.
• Targeting Specific Genes: Research has identified various genetic factors associated with periodontal disease. For example, genetic variations that may lead to altered immune responses can exacerbate tissue inflammation and bone loss. By developing gene therapy techniques to target these specific genes, clinicians could potentially restore normal immune function and reduce the inflammatory response, improving disease outcomes.

Mechanisms of Action: Gene therapy can be employed in several ways:

• Gene Replacement: Introducing healthy copies of genes to compensate for defective ones.
• Gene Editing: Using technologies like CRISPR-Cas9 to directly correct mutations within specific genes.
• Gene Silencing: Reducing the expression of harmful genes that contribute to inflammation or microbial colonization.

With successful application, gene therapy could offer long-term solutions to manage or even eliminate periodontal disease, reducing the need for frequent interventions and improving overall oral health.

• Salivary Diagnostics: Saliva is a rich source of biomolecules, including proteins, enzymes, and nucleic acids, reflecting systemic health and disease states. Genetic engineering has advanced the potential of salivary diagnostics, making it an important tool for early detection and management of oral and systemic diseases.
• Genetic Markers: Researchers are identifying specific genetic markers present in saliva that can indicate the presence of various oral diseases, including oral cancers, periodontal diseases, and other systemic conditions. These markers may include altered gene expressions, mutations, or changes in bacterial DNA. [9,10]

Advantages of Salivary Diagnostics

• Non-Invasive: Unlike traditional biopsies or blood tests, saliva collection is painless and can be performed easily in a clinical setting or even at home.
• Early Detection: The ability to detect genetic markers associated with diseases in their initial stages can lead to timely interventions, potentially improving patient outcomes.
• Monitoring: Salivary diagnostics can also be used to monitor disease progression or treatment efficacy, enabling personalized treatment adjustments.

In summary, genetic engineering provides exciting opportunities to enhance oral health through innovative methods like gene therapy and salivary diagnostics. By targeting specific genes linked to oral diseases and utilizing genetic markers in saliva, these approaches can lead to improved preventive care, more effective treatments, and better patient outcomes in the field of dentistry. As research continues to advance in this area, we can expect further developments that will reshape our understanding and management of oral health.

Stem Cell Research in Dentistry: Stem cell research is making significant strides in dental regeneration, offering innovative solutions to restore function and aesthetics in oral health. Among the various types of stem cells, Dental Pulp Stem Cells (DPSCs) have gained considerable attention due to their unique properties and potential applications in treating dental conditions. [11,12]

1. Dental Pulp Stem Cells (DPSCs): Dental Pulp Stem Cells are a type of mesenchymal stem cell located within the dental pulp—the soft tissue inside the tooth. Here’s why DPSCs are a focal point in dental regeneration:
2. Regenerative Potential: DPSCs possess the ability to differentiate into various cell types, such as odontoblasts (which form dentin), osteoblasts (bone-forming cells), and neurons. This pluripotency makes them ideal candidates for regenerating damaged dental tissues.
3. Easy Accessibility: DPSCs can be easily obtained from extracted teeth, particularly wisdom teeth or teeth that require extraction due to decay or other issues. This accessibility provides a practical source for stem cell therapy without significant ethical concerns, unlike embryonic stem cells.
4. Immune Privilege: Unlike other stem cells, DPSCs exhibit immune privilege, which means they are less likely to provoke an immune response when transplanted into a patient. This characteristic enhances their potential for clinical applications.

Applications of DPSCs: The regenerative capabilities of DPSCs pave the way for a range of applications in dental medicine:

1. Traumatic Dental Injuries: In cases of dental trauma—such as fractures or avulsions (when a tooth is completely knocked out)—DPSCs can facilitate the regeneration of pulp tissue and support the restoration of tooth vitality. They may play a critical role in re-establishing the tooth's function and preventing future complications.
2. Tooth Regeneration: Perhaps one of the most exciting prospects is the potential for complete tooth regeneration. Research is ongoing into using DPSCs, in combination with scaffolding materials, to create bioengineered teeth that can integrate with surrounding tissues. The goal is to develop methods for restoring natural tooth structure and function, reducing reliance on traditional restorative options like crowns or implants.
3. Periodontal Regeneration: Beyond dental pulp therapies, DPSCs can also contribute to the regeneration of periodontal tissues, aiding recovery from periodontal disease and bone loss associated with gum disease.

Microbial Biotechnology in Dentistry: Microbial biotechnology examines the role of microorganisms, particularly bacteria, in health and disease. In the context of oral health, this field is gaining traction as researchers explore how microbial communities affect dental conditions and how specific strains can be harnessed for therapeutic benefits. The two main areas of focus include probiotics for oral health and the development of genetically engineered antimicrobial agents.[13-15]

1. Probiotics: Probiotics are live microorganisms that confer health benefits when administered in adequate amounts. In dentistry, certain strains of probiotics have demonstrated potential in promoting oral health and preventing dental issues.
2. Preventing Dental Caries: Dental caries, commonly known as tooth decay, is primarily caused by acid-producing bacteria such as Streptococcus mutans. Some studies have shown that probiotics, such as Lactobacillus reuteri and Lactobacillus rhamnosus, can help balance the oral microbiota by inhibiting the growth of these harmful bacteria. By promoting the dominance of beneficial bacteria, probiotics can reduce acid production and prevent tooth decay.
3. Managing Periodontal Diseases: Probiotics may also play a vital role in managing periodontal diseases, which are inflammatory conditions affecting the supporting tissues of the teeth. Certain probiotic strains have been shown to improve clinical parameters in patients with gingivitis and periodontitis by reducing inflammation and promoting gingival health. Moreover, they can help restore a healthy microbial balance after antibiotic treatment, which can disrupt the oral microbiome.

Mechanisms of Action: Probiotics exert their beneficial effects through various mechanisms, including:

Competition: They compete with pathogenic microbes for nutrients and attachment sites on oral surfaces.

Metabolite Production: Probiotics produce metabolites such as bacteriocins and organic acids that inhibit pathogenic bacteria.

Immune Modulation: They can modulate the host immune response, enhancing defense mechanisms against oral diseases.

Antimicrobial Agents: Genetic engineering is a powerful tool in developing novel antimicrobial agents targeted at specific pathogens implicated in oral diseases.

1. Targeting Specific Pathogens: Traditional antibiotics often lack specificity and can disrupt the balance of the oral microbiota. By employing genetic engineering techniques, researchers can design antimicrobial agents that specifically target harmful bacteria, such as Porphyromonas gingivalis, which is associated with periodontal disease, without affecting beneficial bacteria.
2. Bacteriocins: These are ribosomally synthesized peptides produced by bacteria that can inhibit the growth of closely related bacterial strains. Genetic engineering can be employed to enhance the efficacy of naturally occurring bacteriocins or create new variants with improved antimicrobial properties.
3. Biofilm Management: Many oral pathogens thrive in biofilm communities, making them more resistant to treatments. Antimicrobial agents developed through genetic engineering can be designed to disrupt biofilm formation or enhance the activity of existing antimicrobial treatments, improving overall efficacy against oral infections.

Conclusion

In conclusion, biotechnology is revolutionizing the field of dentistry by enhancing diagnostic methods, treatment options, and patient outcomes. Innovations such as gene therapy, tissue engineering, and regenerative medicine demonstrate the potential to not only improve existing procedures but also to pioneer new approaches in oral health care. These advancements enable personalized treatment plans, reducing recovery times and improving the overall patient experience. As this dynamic field continues to evolve, ongoing research and development will play a crucial role in overcoming challenges and maximizing the benefits of biotechnology in dentistry. By embracing these advancements, dental professionals can provide more effective, efficient, and desirable care, ultimately contributing to better oral health and well-being for patients around the world.

References

1. Singh S, Kumar NK. Embracing the Future of Dentistry: A Comprehensive Look at Innovations in Conservative Dentistry and Endodontics. J Conserv Dent Endod. 2024 Apr;27(4):343-344.

2. Khurshid Z. Digital Dentistry: Transformation of Oral Health and Dental Education with Technology. Eur J Dent. 2023 Oct;17(4):943-944.

3. Sreenivasalu PKP, Dora CP, Swami R, Jasthi VC, Shiroorkar PN, Nagaraja S, Asdaq SMB, Anwer MK. Nanomaterials in Dentistry: Current Applications and Future Scope. Nanomaterials (Basel). 2022 May 14;12(10):1676.

4. Dipalma G, Inchingolo AD, Guglielmo M, Morolla R, Palumbo I, Riccaldo L, Mancini A, Palermo A, Malcangi G, Inchingolo AM, Inchingolo F. Nanotechnology and Its Application in Dentistry: A Systematic Review of Recent Advances and Innovations. J Clin Med. 2024 Sep 5;13(17):5268.

5. Chen L, Al-Bayatee S, Khurshid Z, Shavandi A, Brunton P, Ratnayake J. Hydroxyapatite in Oral Care Products-A Review. Materials (Basel). 2021 Aug 27;14(17):4865.

6. Skallevold HE, Rokaya D, Khurshid Z, Zafar MS. Bioactive Glass Applications in Dentistry. Int J Mol Sci. 2019 Nov 27;20(23):5960

7. Barhate A, Bajaj P, Shirbhate U, Reche A, Pahade A, Agrawal R. Implications of Gene Therapy in Dentistry and Periodontics: A Narrative Review. Cureus. 2023 Nov 26;15(11):e49437.

8. Joy-Thomas A, Lalwani Z, Guajardo L, Valenza J, Fakhouri WD. The Role of Genetics in Human Oral Health: A Systematic-Narrative Review. Dent J (Basel). 2025 Mar 16;13(3):133.

9. Surdu A, Foia LG, Luchian I, Trifan D, Tatarciuc MS, Scutariu MM, Ciupilan C, Budala DG. Saliva as a Diagnostic Tool for Systemic Diseases-A Narrative Review. Medicina (Kaunas). 2025 Jan 30;61(2):243.

10. Albagieh H, Alshehri AZ, Alduraywishi AS, Aldaws A, AlBalawi SS, Abu Shaqqaf HF, Almubayi RA. Evaluation of Salivary Diagnostics: Applications, Benefits, Challenges, and Future Prospects in Dental and Systemic Disease Detection. Cureus. 2025 Jan 16;17(1):e77520.

11. Soudi A, Yazdanian M, Ranjbar R, Tebyanian H, Yazdanian A, Tahmasebi E, Keshvad A, Seifalian A. Role and application of stem cells in dental regeneration: A comprehensive overview. EXCLI J. 2021 Feb 22;20:454-489.

12. Tatullo M. About stem cell research in dentistry: many doubts and too many pitfalls still affect the regenerative dentistry. Int J Med Sci. 2018 Oct 20;15(14):1616-1618.

13. Shirbhate U, Bajaj P, Chandak M, Jaiswal P, Sarangi S, Suchak D, Bharti L. Clinical Implications of Probiotics in Oral and Periodontal Health: A Comprehensive Review. Cureus. 2023 Dec 27;15(12):e51177.

14. Inchingolo F, Inchingolo AM, Malcangi G, De Leonardis N, Sardano R, Pezzolla C, de Ruvo E, Di Venere D, Palermo A, Inchingolo AD, Corriero A, Dipalma G. The Benefits of Probiotics on Oral Health: Systematic Review of the Literature. Pharmaceuticals (Basel). 2023 Sep 16;16(9):1313.

15. Chopra R, Mathur S. Probiotics in dentistry: A boon or sham. Dent Res J (Isfahan). 2013 May;10(3):302-6. Retraction in: Dent Res J (Isfahan). 2014 May;11(3):308.