Dermal fillers are one of the most popular non-surgical aesthetic treatments in the United Kingdom (ISAPS, 2019). They are commonly used to restore age-related volume loss, enhance facial proportions, improve facial harmony and support overall facial rejuvenation.
Popular treatment areas include the lips, cheeks, chin, jawline, nasolabial folds and tear troughs. When carefully planned and appropriately administered, dermal fillers can create subtle, natural-looking enhancements that help patients feel refreshed whilst maintaining their individual features.
As a dentist-led aesthetics clinic, my approach focuses on achieving natural, balanced results through careful assessment, appropriate product selection and a thorough understanding of facial anatomy.
What Are Dermal Fillers?
The vast majority of dermal fillers used in modern aesthetic practice are composed of hyaluronic acid (HA), a naturally occurring substance found within the skin and connective tissues.
Hyaluronic acid attracts and retains water, helping to support hydration, structure and volume. This makes it particularly useful for addressing age-related volume loss and enhancing facial contours.
One of the major advantages of hyaluronic acid fillers is that they are reversible using hyaluronidase. This provides an important additional safety measure and allows treatment to be adjusted if required.
Modern fillers are available in a variety of formulations with different characteristics. Some products are designed to provide deeper structural support in areas such as the cheeks, jawline and chin, whilst others are specifically designed for more delicate areas such as the lips and around the mouth.
Appropriate product selection is a key part of treatment planning and plays an important role in achieving safe, natural-looking outcomes.
Why Do People Choose Dermal Fillers?
There are many reasons why patients consider dermal fillers.
Some patients notice changes associated with the natural ageing process, including volume loss in the cheeks or reduced definition along the jawline. Others may wish to improve facial balance or enhance specific features.
Common reasons patients seek consultation include:
- Restoring age-related volume loss
- Enhancing facial proportions
- Improving facial symmetry
- Supporting facial contours
- Softening the appearance of certain facial folds
- Achieving a refreshed appearance
The goal should never be to completely change how somebody looks. Instead, successful treatment often involves subtle enhancements that complement a patient's natural features.
The Importance of a Comprehensive Consultation
A thorough consultation is one of the most important aspects of safe aesthetic practice.
Before any treatment is considered, a detailed discussion should take place regarding the patient's concerns, goals, medical history and expectations.
Certain medical conditions may influence whether dermal fillers are appropriate. De Boulle and Heydenrych (2005) developed widely referenced guidance to help clinicians assess suitability and identify situations where additional caution may be required.
Patients who are pregnant or breastfeeding, experiencing active infection, or who have certain autoimmune conditions may not be suitable candidates for treatment.
Medical history, medication use and previous aesthetic procedures should always be reviewed as part of the consultation process.
Patient Selection and Safety
Safe outcomes begin with appropriate patient selection.
For example, patients who are immunocompromised due to systemic illness, chemotherapy or immunosuppressive medication may have an increased risk of complications such as delayed inflammatory reactions (Olesińska, 2023). In these situations, additional assessment may be required before proceeding.
Psychological wellbeing is equally important. Patients should have realistic expectations regarding what treatment can achieve. Veale et al. (2012) developed the Cosmetic Procedure Screening Questionnaire (COPS) to help clinicians identify patients who may require further psychological assessment before undergoing cosmetic procedures.
A responsible practitioner should always prioritise patient wellbeing and decline treatment where it is not considered appropriate.
What Side Effects Can Occur?
Like any medical procedure, dermal fillers carry potential risks and side effects.
Fortunately, the majority of side effects are mild and temporary. Kyriazidis et al. (2024) concluded in a systematic review that severe complications are rare, whilst mild side effects such as swelling and bruising are relatively common and typically resolve within a few weeks.
Bruising and Swelling
Bruising is one of the most common temporary side effects following treatment.
Factors such as alcohol consumption, anticoagulant medication and individual healing responses can influence the likelihood of bruising. Patients should always be informed about this possibility during the consent process.
Gaertner et al. (2021) found that arnica may help reduce bruising and swelling following procedures, although evidence remains mixed.
Infection
Infection following dermal filler treatment is uncommon.
Ferneini (2016) reported infection rates between 0.04% and 0.2%. Careful skin preparation, appropriate hand hygiene and meticulous aseptic technique are all important measures used to minimise this risk.
Patients should always follow aftercare instructions and contact their practitioner if they develop unexpected symptoms following treatment.
Understanding Vascular Occlusion
Although rare, vascular occlusion is considered one of the most significant complications associated with dermal fillers.
It occurs when filler affects blood flow within a blood vessel, potentially leading to reduced blood supply to surrounding tissues.
Schelke (2020) estimated the incidence of vascular occlusion to be between 1 in 2,000 and 1 in 10,000 treatments.
While these events are uncommon, all experienced filler practitioners should be trained to recognise and manage vascular occlusion promptly.
Safety measures used to minimise risk include:
- Detailed knowledge of facial anatomy
- Appropriate product selection
- Slow and controlled injection techniques
- Careful treatment planning
- Ongoing complication management training
Patients should also receive clear aftercare advice and understand how to contact their practitioner if concerns arise following treatment.
Longevity of Dermal Fillers
One area of increasing interest within aesthetic medicine is how long dermal fillers remain within the tissues.
Master (2024) demonstrated using magnetic resonance imaging (MRI) that hyaluronic acid filler may remain detectable in some patients for many years after treatment. This challenged previous assumptions regarding complete degradation within 18–24 months.
Importantly, many individuals in these studies remained entirely asymptomatic, and the clinical significance of persistent filler remains an area of ongoing research.
As our understanding of fillers continues to evolve, ongoing research will help practitioners provide increasingly informed recommendations to patients.
Achieving Natural-Looking Results
Successful filler treatment depends on much more than the product itself.
Facial anatomy, assessment, treatment planning, product selection and communication all contribute to achieving natural-looking outcomes.
Occasionally, patients may experience asymmetry, dissatisfaction or filler migration. These outcomes can often be minimised through conservative treatment approaches, staged treatment plans and careful product selection.
High-quality consultation, realistic expectations and open communication remain some of the most important factors in achieving positive patient experiences.
Choosing a Qualified Practitioner
Dermal fillers can be a valuable tool for facial rejuvenation and enhancement when used appropriately.
Whilst complications can occur, most side effects are mild and temporary, and serious complications remain uncommon when treatment is carried out by appropriately trained medical professionals.
Choosing a qualified practitioner with a detailed understanding of facial anatomy, robust consultation processes and appropriate complication management training is one of the most important decisions a patient can make.
At Dr Olivia Spicer Aesthetics, patient safety, education and natural, balanced results sit at the heart of every consultation and treatment plan.
