substance missue Flashcards

1
Q

role of GDP

A
  • Recognise substance missuse in pts and colleagues
  • Emergency dental tx
  • Comprehensive care
  • Signpost to addiction services
  • Referral to hospital services
  • Maintain dental health during rehabilitation
  • Provide stigma and judgement free dental care
  • Have empathy and awareness of potentially manipulative behaviour
  • Realistic tx plan
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2
Q

how to recognise substance missuse

A
  • Loss of reliability
  • Mood and behavior changes – present defensively, angry or challenging
  • Impaired ability to drive
  • Subjective symptoms with no objective evidence (e.g. presenting with trigeminal neuralgia but not wanting to get dx or special investigation just painkillers)
  • Requesting specific drugs
  • Progressive deterioration in personal appearance and hygiene
  • Tremors
  • Constricted or dilated pupils
  • Puncture marks, scars or pigmentation over veins
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3
Q

possible barriers to dental services for substance users

A
  • Professionals’ negative perception of these people
  • Pathways are not established for access
  • Low priority of oral health compared with drug use
  • Fear of dentists including needle phobia,
  • Self-medication
  • Chaotic lifestyles.
  • Fear judgment or prejudice from the dental team
  • Poor attendance and compliance
  • Cost: frequent changes in or loss of employment
  • Behavior
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4
Q

facilitator to access for substance users

A

If enrolled in an addiction program, the patient may have a key worker assigned to them

Key workers can encourage attendance, bring and accompany patients to appointments.

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5
Q

history taking in substance use

A

Detailed history is essential in assessing risk and patients motivation for treatment planning

Sensitive questioning without judgement is required regarding alcohol consumption: including number of units consumed per week; the use of drugs – prescription or recreational – along with quantity and duration; smoking status and living arrangements

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6
Q

medical conditions assoc with substance misuse

A
  • Increased rates of infection (TB, BBV, STI)
  • General health neglect
  • Oral health neglect
  • Chronic liver disease in alcohol abuse – impaired drug metabolism and bleeding risk
  • Blood borne viruses in IVDU
  • Infective Endocarditis  SDCEP
  • Venous thromboses
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7
Q

substance misuse pts may be at risk of

SHx

A
  • Assaults, theft and prostitution can be used to fund a drug addiction
  • Maxillofacial injuries
  • Sharing of needles results in BBV
  • Family disruptions
  • Change in or no address
  • Prison
  • History of attempted rehabilitation/in hospital detox
  • Chaotic lifestyle
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8
Q

consent and substance misuse pts

A

Drug users share risk factors for mental health issues and many of these patients may have fluctuating capacity

Capacity is unlikely when the patient is under the influence of drugs or alcohol
Postpone treatment

Capacity assessment
* Act
* Make
* Communicate
* Understand
* Remember

Alcohol related brain damage (ARBD) encompasses a range of conditions, including Wernicke’s encephalopathy (acute episodes pt confused, impaired consciousness and mobility issues), if delayed tx can cause Korsakoffs syndrome – permanent deficit

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9
Q

capacity assessment involves

A
  • Act
  • Make
  • Communicate
  • Understand
  • Remember

AMCUR

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10
Q

alcohol and capacity

A

Alcohol related brain damage (ARBD) encompasses a range of conditions,
* Wernicke’s encephalopathy (acute episodes pt confused, impaired consciousness and mobility issues),
* if delay in tx can cause Korsakoffs syndrome – permanent deficit

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11
Q

tx plan for substance misuse pts

A

Assess patient expectations prior to planning

Have a flexible approach: the patient may present with unexpected symptoms requiring additional treatment during a course of planned treatment

Initial Stabilisation phase often required: remove active caries and place provisional restorations in a quadrant approach. Extirpate and temporise teeth that require endodontic treatment

All management should include: diet and oral hygiene advice, high strength fluoride tooth paste, fluoride varnish, alcohol free fluoride mouthwash, tooth mousse, sugar-free chewing gum

Keep treatment as simple as possible during active substance misuse: ART and use of SDF

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12
Q

pain control and LA in substance misuse pts

A

This can be challenging due to LA resistance (opiod users) and anxiety

Substance dependent patients often have low pain thresholds

Pain severity is an objective experience – each patient must be treated carefully and sensitively.

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13
Q

cannabis and LA

A

LA with adrenaline can prolong acute tachycardia

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14
Q

alcohol and LA

A

care with LA that is metabolised in the liver (keep dose to minimum)

even 2 cartridges can trigger CNS toxicity signs in severe liver disease

avoid IDB - coagulation defect

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15
Q

anxiety management in substance misuse pts

A

Behavior management techniques can alleviate anxiety, establishing trust and make the patient feel understood

Inhalation is the safest type of sedation – very little impact systemically and no escort required
Patients may have developed a tolerance to effects of sedative drugs and require large doses for adequate anxiolysis to be achieved (inappropriate in dental setting)

Alcohol and opioids have a synergistic effect with sedative agents and so IV sedation should be avoided if the patient is using these substances
* IV Sedation may be an option for the patient in rehabilitation; however, it should be used with caution and may require referral to anaesthetist led services.

GA and IV Sedation can trigger relapse – use with caution(last resort)

Venous access may pose a difficulty due to collapse of veins in a patient with history of intravenous drug use.

Disulfiram inhibits metabolism of benzodiazepines and leads to increased sedative effects if used together - AVOID

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16
Q

general dental implications of substance missuse

10

A
  • Rampant caries: rapidly progressing caries affecting all tooth surfaces
  • Periodontal Disease including necrotizing conditions
  • NCTSL: Erosion and Attrition
  • Masseteric hypertrophy - Bruxism
  • Hyposalivation – xerostomia secondary to opiates and cannabis
  • Poor oral hygiene
  • Poor denture hygiene
  • Opportunistic infections
  • Trauma
  • Oral cancer and mucosal lesions
17
Q

alcohol missue
dental implications

A

Morning appointments – least likely time to be under the influence

Patient may have poly-substance misuse including smoking

Sedatives have an addictive effect with alcohol and risk of tolerance to sedative drug
GA: Best avoided, increased risk of vomiting and inhalation of vomit; can be resistant to GA

Many recovering alcohol dependent patients may be on disulfiram (Antabuse) - psychotic reaction has been reported when disulfiram is given with metronidazole

Advanced caries, periodontal disease and NCTSL

Increased risk of leukoplakia and oral cancer

Glossitis

Angular stomatitis

Recurrent Aphthous Stomatitis

Sialosis

Rhinophyma – thickened skin around nose and large sebaceous glands

Erosion: Due to the acidic nature of alcoholic beverages and also the increased incidence of gastric reflux and recurrent vomiting.

Nocturnal bruxism is common and may contribute to non-carious tooth surface loss.

Dry mouth is common secondary to dehydration and vomiting.

LA - avoid liver metabolised LA (consider Articaine)

liver cirrhosis - drug metabolism (pencillin less effective), bleeding risk

bone marrow suppression - anaemia; thrombocytopenia

avoid NSAIDs

avoid metronidazole - inhibit liver breakdown of acetaldehyde, that will accumulate and cause widespread vasodilation, nausea, vomiting, sweating and headaches

18
Q

opiate missue

A

heroin (most common); *others Morphine, methadone, dihydrocodeine *

Immediate effect of euphoria, lasting for several hours, then a sedative state occurs due to central nervous system depression, which includes analgesia

In dependent patients, analgesics may be ineffective in controlling dental pain, requiring large doses of opioids

However, take care with prescribing - never prescribe opiates for patients with opiate misuse without advice (GMP; substance abuse service)
* The only indication for opiates in dentistry is for severe post-operative pain

Dental implications: trauma, infective endocarditis, enhances sedation agents, oral neglect, impaired drug metabolism

19
Q

advice for methodone users

high sugar content

A
  • Use a straw
  • Drink water after consumption (prevent regurgitation)
  • Don’t brush teeth immediately after
  • Engage with dental services
  • Prevention is key

Sugar free suspension controversial - IV useage

20
Q

cannabis missue

A

3 main forms – marijuana, hashish, and hash oil
* Marijuana is the most used and is usually smoked

Acute effects are varied and usually last 3 hours, include: excitement, euphoria, apprehension, and disorientation, often followed by tranquillity and then fatigue

Risk of oral cancer, psychosis inc schizophrenia, impairment in memory and cognitive function, xerostomia and caries

21
Q

cocaine missue

A

Addictive drug that is usually snorted, can be smoked (crack cocaine), injected intravenously and rubbed into oral mucosa.

Initial effects appear in a matter of minutes and include euphoria and mental clarity. Large doses can produce hallucinations and paranoia
Increasing use by professionals due to stress and to keep awake

May present as unusual ulceration on gingivae, NCTSL, caries and orofacial pain.

Long term use can result in palatal and nasal-septum perforation due to acidic nature and vasoconstriction

Interaction with LA - Delay treatment 6 – 24 hours after administration

22
Q

key pratical advice

A

Avoid adrenaline containing LA for patients on cocaine, ecstasy and methamphetamines for risk of systemic increase in blood pressure (min 24hrs)

Avoid adrenaline containing LA for patient using cannabis due to risk of prolonged tachycardia (min 24hrs)

Alcohol: Liaise with GMP/Gastro prior to invasive treatment – FBC, Coag screen, LFT preop to determine bleeding risk and onward referral if required

Universal precautions for sharps

23
Q

cocaine dental implications

A

May present as unusual ulceration on gingivae, NCTSL, caries and orofacial pain.

Long term use can result in palatal and nasal-septum perforation due to acidic nature and vasoconstriction

Interaction with LA - Delay treatment 6 – 24 hours after administration (risk sytstemic inc in BP)