cosmetology and nails
TRANSCRIPT
Cosmetology and Nails
Cosmetology and NailsReviewed by
Hala Aly IbrahimLecturer Of Dermatology & Venereology
Reviewed by
Hala Aly IbrahimLecturer Of Dermatology & Venereology
Healthy Nails Anatomy & Physiology
Healthy Nails Anatomy & Physiology
Nail HistologyNail Histology
Nail Plate Growth Nail Plate Growth
Complete growth for the nail plate to replace itself from the time it is formed at the root until it reaches beyond the finger tip needs 5-7 months.
Complete growth for the nail plate to replace itself from the time it is formed at the root until it reaches beyond the finger tip needs 5-7 months.
Nail RegenerationNail Regeneration
If: Nail plate is injured & falls off
replaced at normal growth rate. Nail matrix is destroyed nail plate
won’t grow. Nail matrix is damaged distorted
newly growing nail plate.
If: Nail plate is injured & falls off
replaced at normal growth rate. Nail matrix is destroyed nail plate
won’t grow. Nail matrix is damaged distorted
newly growing nail plate.
a. The Shape of the Nailb. Nail texturec. Nail Colourd. Periungual tissue
a. The Shape of the Nailb. Nail texturec. Nail Colourd. Periungual tissue
I - Factors Determining Nail BeautyI - Factors Determining Nail Beauty
a. The Shape of the Naila. The Shape of the Nail
b. The texture of the nailb. The texture of the nail
c. Nail Colour c. Nail Colour
Causes of nail discolorationCauses of nail discoloration
External factors. Degenerative changes. Drugs. Systemic diseases.
External factors. Degenerative changes. Drugs. Systemic diseases.
d. Periungual Tissued. Periungual Tissue
Chemicals & repeated wetting & drying should be avoided
Cutting the nails [(wet) - magic ratio] Shaping the nails (dry) Splits and cracks & hang nails Nail health supplements
Chemicals & repeated wetting & drying should be avoided
Cutting the nails [(wet) - magic ratio] Shaping the nails (dry) Splits and cracks & hang nails Nail health supplements
a. General health care measures
a. General health care measures
i. Instruments: Tools Sanitary practice:
Sanitation Disinfection Sterilization
i. Instruments: Tools Sanitary practice:
Sanitation Disinfection Sterilization
b. Nail Care Itemsb. Nail Care Items
InstrumentsInstruments CosmeticsCosmetics
ii. Nail Cosmetics: Nail Cosmetic Products
Nail polishes Polish removers Basecoats & topcoats Nail Hardeners Conditioners & Buffering creams Cuticle remover
Artificial nails
ii. Nail Cosmetics: Nail Cosmetic Products
Nail polishes Polish removers Basecoats & topcoats Nail Hardeners Conditioners & Buffering creams Cuticle remover
Artificial nails
Artificial NailsArtificial Nails
These are used as a substitute for nails in individuals desiring long attractive nails, but whose own nails are abnormal in appearance or break easily.
Types: Sculptured Preformed Nail mending or wrapping kits Gel Systems
These are used as a substitute for nails in individuals desiring long attractive nails, but whose own nails are abnormal in appearance or break easily.
Types: Sculptured Preformed Nail mending or wrapping kits Gel Systems
Sculptured Artificial NailsSculptured Artificial Nails
Replace deteriorated nail plate Lengthen & decorate normal nail plate The polymer is clear so can be used for
men
Replace deteriorated nail plate Lengthen & decorate normal nail plate The polymer is clear so can be used for
men
Preformed Plastic Nails
Preformed Plastic Nails
Used as full nails or tips Fixed with adhesives e.g. cyanoacrylate Need some normal nail for attachment Don’t leave for more than 2 days at a
time
Used as full nails or tips Fixed with adhesives e.g. cyanoacrylate Need some normal nail for attachment Don’t leave for more than 2 days at a
time
Nail Mending or Wrapping Kits
Nail Mending or Wrapping Kits
Act as a splint for a partially fractured nail plateAct as a splint for a partially fractured nail plate
Gel NailsGel Nails
Acrylic-based material used as caps over natural nails of persons having trouble growing their own nails (chipping, cracking & peeling) e.g. nail biters
Acrylic-based material used as caps over natural nails of persons having trouble growing their own nails (chipping, cracking & peeling) e.g. nail biters
Adverse Effects of Nail Cosmetic Procedures
Adverse Effects of Nail Cosmetic Procedures
a. Nail instrument damage: Misuse of nail instruments is
potentially far more damaging to the nail than are many cosmetic preparations. Traumatic injuries may cause not only infection but also chipping, splitting, breaking, onycholysis and even Beau’s lines
a. Nail instrument damage: Misuse of nail instruments is
potentially far more damaging to the nail than are many cosmetic preparations. Traumatic injuries may cause not only infection but also chipping, splitting, breaking, onycholysis and even Beau’s lines
b. Reactions to cosmetics applied to the nails: Nail polish:
Nail polish dermatitis: Dermatitis of allergic origin can appear in any part of the body accesible to the nails, but usually with no signs in the nail apparatus except for the periungual area in some cases.
b. Reactions to cosmetics applied to the nails: Nail polish:
Nail polish dermatitis: Dermatitis of allergic origin can appear in any part of the body accesible to the nails, but usually with no signs in the nail apparatus except for the periungual area in some cases.
Diagnostic skin patch testing with a battery of nail enamel components should be performed without occlusive covering, or with dry enamel film to avoid false positive reactions from the solvents.
Diagnostic skin patch testing with a battery of nail enamel components should be performed without occlusive covering, or with dry enamel film to avoid false positive reactions from the solvents.
Nail plate staining: Deeper shades of red
and brown nail enamel may cause mild staining of nail keratin. This is self-limiting as new nail growth appears. The stain can be avoided by using a basecoat.
Nail plate staining: Deeper shades of red
and brown nail enamel may cause mild staining of nail keratin. This is self-limiting as new nail growth appears. The stain can be avoided by using a basecoat.
Granulation of nail keratin In persons who apply fresh
coats of enamel on top of old ones for several weeks. It results in superficial NP friability. It may be avoided by keeping the nail free of cosmetic agents for a few days.
Granulation of nail keratin In persons who apply fresh
coats of enamel on top of old ones for several weeks. It results in superficial NP friability. It may be avoided by keeping the nail free of cosmetic agents for a few days.
Onycholysis Nail enamel and
related products reduce but do not eliminate vapour exchange from nail bed to the environment rarely causing onycholysis.
Onycholysis Nail enamel and
related products reduce but do not eliminate vapour exchange from nail bed to the environment rarely causing onycholysis.
Nail polish removers: Acetone, ethylacetate or similar organic
solvents dehydrate the NP and decrease corneocyte adhesion, contributing to brittleness. They also remove lipids from the NP & cause inflammation of the paronychial area. Rarely, irritant and allergic contact dermatitis, blistering and onycholysis may occur.
Nail polish removers: Acetone, ethylacetate or similar organic
solvents dehydrate the NP and decrease corneocyte adhesion, contributing to brittleness. They also remove lipids from the NP & cause inflammation of the paronychial area. Rarely, irritant and allergic contact dermatitis, blistering and onycholysis may occur.
Artificial Nails: Spontaneous separation of
the natural NP from its bed Peeling and transverse
splitting of the nail Contact dermatitis
resulting in onycholysis and subungual hyperkeratosis
May potentiate infectious complications
Artificial Nails: Spontaneous separation of
the natural NP from its bed Peeling and transverse
splitting of the nail Contact dermatitis
resulting in onycholysis and subungual hyperkeratosis
May potentiate infectious complications
SummarySummary
The art of nail care is a common demand among most health oriented individuals.
It is a mistake for the physician to view a patient’s complaint of unattractive nails as too trivial for medical consideration.
The proper understanding of nail anatomy & physiology is a baseline request.
The art of nail care is a common demand among most health oriented individuals.
It is a mistake for the physician to view a patient’s complaint of unattractive nails as too trivial for medical consideration.
The proper understanding of nail anatomy & physiology is a baseline request.
In addition, a sound insight on conventional nail care procedures as well as nail care products will help to overcome any unappealing cosmetic defect.
In addition, a sound insight on conventional nail care procedures as well as nail care products will help to overcome any unappealing cosmetic defect.
Dystrophic, absent or diseased nails (particularly were only few are involved, can be improved cosmetically with nail care regimen, added colors or artificial nails.
Dermatologists are well advised to recognize such means for achieving a psychologic lift in their patients.
Dystrophic, absent or diseased nails (particularly were only few are involved, can be improved cosmetically with nail care regimen, added colors or artificial nails.
Dermatologists are well advised to recognize such means for achieving a psychologic lift in their patients.
Factors causing cosmetic nail derangement Developmental and hereditary nail disorders Physical or chemical trauma Diseases
Systemic Cutaneous Psychological Tumours
Medications Topical Systemic
Factors causing cosmetic nail derangement Developmental and hereditary nail disorders Physical or chemical trauma Diseases
Systemic Cutaneous Psychological Tumours
Medications Topical Systemic
Infection of nail unitInfection of nail unit
1.Nail fold (paronychia): Acute: Bacterial : (staph),
Viral: herpetic whitlow honey-comb) Chronic: (Candida with superadded bacteria)
2.nail plate (onychia)
1.Nail fold (paronychia): Acute: Bacterial : (staph),
Viral: herpetic whitlow honey-comb) Chronic: (Candida with superadded bacteria)
2.nail plate (onychia)
Tumours Tumours
Benign:• Warts.• Myxoid cyst (synovial ).• Subungual exostosis.• Nevus Junctional N. in matrix….band).• Pyogenic granuloma.• Fibromata (tuberous sclerosis).• Glomus tumour
Benign:• Warts.• Myxoid cyst (synovial ).• Subungual exostosis.• Nevus Junctional N. in matrix….band).• Pyogenic granuloma.• Fibromata (tuberous sclerosis).• Glomus tumour
MalignantMalignant SCC
Malignant melanoma usually follows pigmented nail band.
Lymphoma
SCC
Malignant melanoma usually follows pigmented nail band.
Lymphoma