PRE- READING COURSE MATERIAL FOUNDATION BOTOX® AND DERMAL FILLERS Module 1 OVERVIEW • Principles of dermatology and the ageing face • Principles of facial anatomy • Principles of the aesthetic consultation and consenting OVERVIEW • Principles of dermatology and the ageing face • Principles of facial anatomy • Principles of the aesthetic consultation and consenting DERMATOLOGY SKIN ANATOMY The skin is made up broadly of 3 layers: - Epidermis - Dermis - Subcutis SKIN ANATOMY SKIN EPIDERMIS DERMIS Stratum Stratum Stratum Corneum Stratum Lucidum Spinosum Basale Stratum Granulosum Papillary Dermis SUBCUTIS Reticular Dermis SKIN ANATOMY SKIN EPIDERMIS DERMIS Stratum Stratum Stratum Corneum Stratum Lucidum Spinosum Basale Stratum Granulosum Papillary Dermis SUBCUTIS Reticular Dermis SKIN ANATOMY The epidermis is the outermost layer of the skin, and protects the body from the environment. The epidermis layer itself is made up of five sublayers that work together to continually rebuild the surface of the skin. SKIN ANATOMY The Basal Cell Layer The basal layer is the lowest/ innermost layer of the epidermis and contains basal cells that continually divide. The Squamous Cell Layer The squamous cell layer is located above the basal layer. Here, basal cells are pushed upward, however these maturing cells are now called squamous cells, or keratinocytes. The Stratum Granulosum & The Stratum Lucidum Keratinocytes from the squamous layer are pushed up through two thin epidermal layers called the stratum granulosum and the stratum lucidum. As these cells move further towards the surface of the skin, they get bigger and flatter and adhere together, and then eventually become dehydrated and die. The Stratum Corneum The stratum corneum is the uppermost layer of the epidermis, and is made up of 10 to 30 thin layers of continually shedding, dead keratinocytes. The stratum corneum is sloughed off continually as new cells take its place, but this shedding process slows down with age. Complete cell turnover occurs every 28 to 30 days in young adults, while the same process takes 45 to 50 days in elderly adults. SKIN ANATOMY SKIN EPIDERMIS DERMIS Stratum Stratum Stratum Corneum Stratum Lucidum Spinosum Basale Stratum Granulosum Papillary Dermis SUBCUTIS Reticular Dermis SKIN ANATOMY The Dermis The dermis is located beneath the epidermis and is the thickest of the three layers of the skin (1.5 to 4 mm thick), making up approximately 90 percent of the thickness of the skin. The main functions of the dermis are to regulate temperature and to supply the epidermis with nutrient-saturated blood. The dermis layer is made up of two sublayers: The Papillary Layer The upper, papillary layer, contains a thin arrangement of collagen fibers. The papillary layer supplies nutrients to select layers of the epidermis and regulates temperature. The Reticular Layer The lower, reticular layer, is thicker and made of thick collagen fibers that are arranged in parallel to the surface of the skin. The reticular layer is denser than the papillary dermis, and it strengthens the skin, providing structure and elasticity. It also supports other components of the skin, such as hair follicles, sweat glands, and sebaceous glands. SKIN ANATOMY SKIN EPIDERMIS DERMIS Stratum Stratum Stratum Corneum Stratum Lucidum Spinosum Basale Stratum Granulosum Papillary Dermis SUBCUTIS Reticular Dermis SKIN ANATOMY The Subcutis The subcutis is the innermost layer of the skin, and consists of a network of fat and collagen cells. The subcutis is also known as the hypodermis or subcutaneous layer, and functions as both an insulator, conserving the body's heat, and as a shock-absorber, protecting the inner organs. It also stores fat as an energy reserve for the body. The blood vessels, nerves, lymph vessels, and hair follicles also cross through this layer. SKIN ANATOMY During the aging process, there is an ongoing loss of collagen and elasticity in the skin, resulting in the skin becoming lax. Collagen loss causes tissue atrophy and thinning of the skin, with increased rhytid (wrinkle) formation. Younger skin Older skin THE AGEING FACE Loss of the underlying fat causes descent of the overlying structures in the ageing face. This occurs most predominantly in the following areas; THE AGEING FACE Over many years the changes in skin laxity lead to loss of the volume and curves of the cheeks, resulting in bony contours. Tissue descent also causes increased nasolabial and labiomandibular folds THE AGEING FACE There are two types of wrinkles: dynamic wrinkles and static wrinkles. The dynamic wrinkle is caused by animation or muscle function. Dynamic wrinkles can be seen here with movement and purposeful contraction of the muscle. They disappear when the patient relaxes. Static wrinkles are seen at rest, even on relaxation of the muscle. OVERVIEW • Principles of dermatology and the ageing face • Principles of facial anatomy • Principles of the aesthetic consultation and consenting FACIAL MUSCLES THE UPPER THIRD OF THE FACE Corrugator supercilii Depressor supercilii FACIAL MUSCLES Frontalis Procerus Depressor supercilii Orbicularis oculi Corrugator supercilii FRONTALIS MUSCLE Frontalis Procerus Depressor supercilii Orbicularis oculi Corrugator supercilii FRONTALIS MUSCLE Contraction of these key muscles causes wrinkling of the overlying skin. • Origin: galea aponeurotica along the coronal suture • Insertion: into the dermis at the level of the eyebrows. No bony insertions. FRONTALIS MUSCLE CONTRACTION GLABELLA COMPLEX Frontalis Procerus Depressor supercilii Orbicularis oculi Corrugator supercilii GLABELLA COMPLEX Procerus Muscle • Origin: tendinous fibres from the fascia overlying the nasal bone and upper part of the lateral nasal cartilage • Insertion: lower medial forehead Corrugator supercilii • Origin: Medial end of the superciliary arch of the frontal bone • Insertion: Skin beneath the middle of the eyebrow Depressor supercilii • Origin: midline of the frontal bone approximately 1cm above the medial canthal tendon • Insertion: Skin and subcutaneous tissue beneath the eyebrow GLABELLA COMPLEX MUSCLE CONTRACTION ORBICULARIS OCULI Frontalis Procerus Depressor supercilii Orbicularis oculi Corrugator supercilii CROW’S FEET The orbicularis oculi muscle is a thin flat sphincteric muscle that originates from the frontal bone near the medial canthus. It consists of three parts: 1) Pars orbitalis or the orbital part of orbicularis oculi is the bulkiest among the three. Coarse fibers surround the entire orbit. It has two origins: the frontal bone and the maxilla. The insertion circles around the orbit. It contracts to close the eyes tight. 2) Pars palpebralis or the palpebral part covers the eyelid itself. It also encases the lacrimal sac and canaliculi. Compared to the pars orbitalis, it is made up of fine fibers. It originates from the medial palpebral ligament and inserts into the zygomatic bone, specifically at the lateral palpebral ligament. It acts to close the eyes gently. 3) Pars lacrimalis or the lacrimal part of the orbicularis oculi is responsible for anchoring the lacrimal canal towards the eye surface. Its origin is the lacrimal bone and its insertion is the lateral palpebral raphe. CROW’S FEET The medial portion of the orbicularis is a medial brow depressor and contributes to the glabella lines. It runs superficial to the depressor supercilii. The lateral portion of the orbicularis oculi is a lateral brow depressor and creates the wrinkling pattern known as crow’s feet. The orbicularis oculi muscle interdigitates with the dermis of the skin throughout its course such that botulinium toxin injections need only be intradermal or very superficial to achieve the desired effects. ORBICULARIS OCULI CONTRACTION OVERVIEW • Principles of dermatology and the ageing face • Principles of facial anatomy • Principles of the aesthetic consultation and consenting THE AESTHETIC CONSULTATION • Introduce yourself and confirm the patient (date of birth) • Establish the client’s desires for the outcome of the treatment • Take a full medical, surgical and aesthetic history and confirm any allergies – Particular note should be taken to any condition affecting the neuromuscular junction such as Myasthenia Gravis, Amyotrophic Lateral Sclerosis and Eaton Lambert Syndrome. – In the aesthetic history, assess the patient’s expectations and any body dysmorphia • Take a full medication history and establish if the client smokes THE AESTHETIC CONSULTATION • Use a hand held mirror in front of the patient and ask them to tell you what they are trying to modify • Discuss the options with the patient. It is essential that they are aware that; – – – – – • • • Treatments are not permanent and Botox cannot ‘remove’ static wrinkles Treatments do not work immediately Treatment doses may need to be altered/ increased over time Ongoing maintenance and treatment will be required An initial ‘standard’ dose regime will be used and the client will be reviewed in 2 weeks to assess the outcome of treatment- at which point more treatment can be offered, if required Discuss the cost with the client before any treatment in undertaken Consent for photography and store this appropriately in the medical notes Explain the aftercare required CONSENT • Your client must be consented appropriately according to GMC and NMC guidelines. You can use the following documents as a guide; • Consent:pa+entsanddoctorsmakingdecisionstogether(GMC, 2008) • Principlesofpa+entconsent(GDC2009) • Consent(NMC,2010) h"p://www.gmc-uk.org/guidance/ethical_guidance/consent_guidance_index.asp Consent.NMC.h"p://www.nmc-uk.org/Nurses-and-midwives/Advice/Consent/ (AccessedOctober2012) CONSENT • Risks and complications for the procedures can be reviewed in this document under ‘Botox and Dermal fillers’ sections • You should give your client sufficient time (ideally a minimum of 2 weeks) to process the information and understand the procedure fully, before asking them to sign the consent form • Ensure they are given the opportunity to ask any questions OVERVIEW • Principles of dermatology and the ageing face • Principles of facial anatomy • Principles of the aesthetic consultation and consenting NOTES
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