Daily Cosmetic Research Analysis
A double-blind RCT shows that adding acyclovir to a compounded mouthwash significantly reduces chemotherapy-induced oral mucositis incidence, severity, and duration. An in vitro dental materials study finds ZnO nanoparticles outperform hydroxyapatite in dentinal tubule occlusion and erosion resistance. A pedagogical paper introduces an "open book" facial dissection method to teach safer filler and botulinum toxin injections by visualizing layered anatomy and risk zones.
Summary
A double-blind RCT shows that adding acyclovir to a compounded mouthwash significantly reduces chemotherapy-induced oral mucositis incidence, severity, and duration. An in vitro dental materials study finds ZnO nanoparticles outperform hydroxyapatite in dentinal tubule occlusion and erosion resistance. A pedagogical paper introduces an "open book" facial dissection method to teach safer filler and botulinum toxin injections by visualizing layered anatomy and risk zones.
Research Themes
- Supportive oncology oral care
- Dental biomaterials for dentin hypersensitivity
- Anatomy-driven training for cosmetic injections
Selected Articles
1. The role of compounded mouthwash with or without acyclovir in managing chemotherapy-induced oral mucositis in cancer patients: a randomized controlled trial.
In a double-blind RCT of 110 hematologic oncology patients, an acyclovir-containing compounded mouthwash reduced CIOM incidence (25.5% vs 45.5; p=0.028), shortened duration (median 4.5 vs 7.5 days; p=0.01), and eliminated grade 3 events compared with control. Logistic regression supported a protective effect (OR 2.444; p=0.03).
Impact: Provides randomized evidence that a simple formulation change (adding acyclovir) meaningfully improves CIOM outcomes in high-risk patients, addressing a common unmet need in supportive oncology care.
Clinical Implications: Clinicians may consider acyclovir-containing compounded mouthwash as part of prophylaxis or early management for CIOM in hematologic chemotherapy or transplant settings, pending confirmation in larger multicenter trials.
Key Findings
- CIOM incidence was lower with acyclovir mouthwash (25.5%) vs control (45.5%; p=0.028).
- Mucositis duration was shorter with acyclovir (median 4.5 vs 7.5 days; p=0.01).
- No grade 3 mucositis occurred in the acyclovir arm vs five cases in control (p=0.045).
- Logistic regression supported a protective effect (OR 2.444; p=0.03).
Methodological Strengths
- Prospective, double-blind randomized controlled design with standardized WHO mucositis grading.
- Multivariable logistic regression corroborating primary findings.
Limitations
- Single-center, modest sample size limits generalizability.
- Trial registration and detailed mouthwash composition beyond acyclovir not reported; no long-term outcomes.
Future Directions: Conduct multicenter, adequately powered RCTs, standardize formulation and dosing, assess safety, patient-reported outcomes, and cost-effectiveness, and test across cancer types and regimens.
BACKGROUND: Chemotherapy-induced oral mucositis (CIOM) is a prevalent and debilitating condition observed in cancer patients, especially in those suffering from hematologic malignancies. The present study assessed the efficacy of a compounded mouthwash, both with and without the addition of acyclovir, in the management of CIOM. Although various treatment options exist for this condition, their effectiveness remains limited, underscoring the necessity for innovative approaches to the formulation of compounded mouthwashes for improved management of CIOM. METHODS: A prospective, double-blind, randomized controlled study design with 110 patients with newly diagnosed acute leukemia or who underwent hematopoietic stem cell transplantation. Participants were allocated randomly to either the acyclovir-containing mouthwash group (Arm A) or the control group without acyclovir (Arm B). The incidence, duration, and severity of mucositis were assessed via standardized scale, the World Health Organization (WHO) scale for oral mucositis. RESULTS: The incidence of mucositis was significantly lower in Arm A (25.5%) compared to Arm B (45.5%), with a p-value of 0.028. Furthermore, the duration of mucositis was significantly shorter in Arm A, exhibiting a median duration of 4.5 days, in contrast to a median of 7.5 days observed in Arm B (p = 0.01). Grade 3 mucositis was absent in the acyclovir group, whereas there were five cases reported in Arm B (p = 0.045). Logistic regression analysis corroborated the protective effect of the acyclovir-containing mouthwash against the development of mucositis, yielding an odds ratio (OR) of 2.444 with a p-value of 0.03. CONCLUSIONS: The incorporation of acyclovir into compounded mouthwash significantly reduced the incidence, severity, and duration of oral mucositis in patients undergoing chemotherapy, indicating its potential for expanded clinical application. Further large-scale studies are warranted to validate these findings and to standardize mouthwash formulations for institutional utilization. TRIAL REGISTRATION: This trial was approved by the Institutional Research Board (IRB) under the code R.23.05. 2176.R1. Date: 20 May 2023.
2. Profilometric and scanning electron microscopy analysis comparing hydroxyapatite and zinc oxide nanoparticles for erosion resistance.
In an in vitro study using 27 dentin discs, ZnO nanoparticle-loaded CMC hydrogel achieved greater dentinal tubule occlusion and superior erosion resistance than hydroxyapatite nanoparticles, while etched controls had the roughest surfaces and most open tubules. ImageJ quantification corroborated SEM observations.
Impact: Identifies ZnO nanoparticles as a promising desensitizing material with better erosion resistance and tubule occlusion than hydroxyapatite, informing the design of next-generation treatments for dentin hypersensitivity.
Clinical Implications: Supports prioritizing ZnO nanoparticle formulations for future clinical desensitizing products; requires clinical trials to validate pain reduction, durability, and safety.
Key Findings
- Etched controls showed highest surface roughness and most unoccluded dentinal tubules.
- ZnO nanoparticle group achieved more dentinal tubule occlusion than hydroxyapatite group by SEM and ImageJ quantification.
- ZnO nanoparticles demonstrated superior resistance to erosive wear compared with hydroxyapatite nanoparticles.
- Group II (hydroxyapatite) had lower SRa than Group III (ZnO), but ZnO showed better functional occlusion and erosion resistance.
Methodological Strengths
- Random allocation across three groups with controlled in vitro conditions.
- Multi-modal assessment combining profilometry, SEM, and ImageJ-based quantification.
Limitations
- In vitro design with extracted teeth; no clinical pain or sensitivity outcomes.
- Small sample size and evaluation limited to two nanoparticle types and a 7-day protocol.
Future Directions: Advance to randomized clinical trials assessing patient-reported sensitivity reduction, longevity under dietary acids, and biocompatibility; optimize nanoparticle loading and hydrogel carriers.
BACKGROUND: Dentin hypersensitivity (DH) is a prevalent dental issue characterized by sharp pain of short duration. Although the exact cause of DH remains debated, the hydrodynamic theory explains its mechanism. Furthermore, various methods, such as potassium-containing toothpaste, mouthwash, and chewing gum, have been attempted to address DH. However, recent research has explored the potential of nanoparticles (NPs) for DH treatment due to their biocompatibility and bioactive properties. METHODS: Twenty-seven sound premolars extracted for orthodontic purposes were utilized in the present study to obtain 27 mid-coronal dentin discs. These discs were then etched with 37% orthophosphoric acid for 20 s to expose dentinal tubules (DTs) and simulate DH. Subsequently, dentin discs were rinsed with distilled water for 1 min. These dentin discs were randomly allocated into 3 groups: Group I (etched control), Group II (the etched dentin discs were treated with a carboxymethyl cellulose (CMC) dental hydrogel scaffold loaded with 20% HANPs), and Group III (the etched dentin discs were treated with a CMC dental hydrogel scaffold loaded with 20% ZnO NPs). After 7 days, Group II and III underwent erosive challenge to evaluate the protective effect of the nanoparticle treatments. Finally, the dentin discs were analyzed using profilometric analysis to measure surface roughness (SRa), scanning electron microscopy (SEM) to evaluate DT occlusion, computer-assisted SEM image analysis using Image J. RESULTS: Among the groups, Group I exhibited the highest SRa following the DH simulation. Group II showed lower SRa compared to group III. SEM analysis indicated that Group III displayed more occluded DTs compared to Group II. Group I showed the most unoccluded DTs. The SEM analysis results were further quantitatively confirmed using Image J. CONCLUSIONS: The results indicated that both HANPs and ZnO NPs exhibited promising outcomes; however, ZnO NPs demonstrated superior effectiveness in resisting erosive wear compared to HANPs.
3. "Open book facial dissection" : an ideal pedagogical approach for learning safe and effective fillers and botulinum toxin injection techniques.
The authors describe an "open book" facial dissection pedagogy that exposes layered anatomy on one hemiface and performs comparative injection demonstrations on the other, mapping ageing changes and risk zones to optimize filler and botulinum toxin injection planning.
Impact: Addresses a critical training need by directly linking layered anatomical structures to injection techniques and risks, potentially reducing complications in aesthetic practice.
Clinical Implications: Adoption of this structured dissection-based curriculum could standardize injector training, enhance recognition of danger zones, and improve safety for cosmetic filler and toxin procedures.
Key Findings
- Introduces a reproducible "open book" dissection that visualizes skin, superficial fat, SMAS, and deep fat in layers on one hemiface.
- Provides a contralateral comparative injection demonstration to link anatomy with clinical technique, including site, depth, and risk.
- Demonstrates ageing processes and corrective injection targets to justify injection planning.
Methodological Strengths
- Layered, visual pedagogy that directly connects anatomical structures to clinical injection parameters.
- Structured and reproducible dissection approach facilitating risk visualization.
Limitations
- Descriptive educational report without quantitative learner outcomes or comparative evaluation.
- Generalizability and impact on complication rates remain untested in prospective studies.
Future Directions: Prospectively evaluate competency gains, complication rates, and knowledge retention; compare against standard curricula; explore integration with simulation/AR/VR.
Knowledge of facial anatomy and ageing is essential for safe fillers and botulinum toxin injection procedures with effective aesthetic results. Open book dissection is a reliable and reproducible method of teaching anatomy. It is a visual pedagogical approach based on the layered anatomy of the face. It combines on one hemiface, a dissection of the skin, the superficial fat compartment, the superficial musculo-aponeurotic system and the deep fat compartment and on the contralateral hemiface, a comparative injection demonstration. The ageing processes and the targets of corrective injection are demonstrated. Clinical applications regarding injection sites, their position with skin markers, depth and risk are justified and better visualized.