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Odontogenic Odontogenic InfectionsInfections
DR MOHAMMAD AKHEEL DR MOHAMMAD AKHEEL
OMFS PG OMFS PG
Odontogenic InfectionsOdontogenic Infections
One of the most One of the most difficult problemsdifficult problems
Range from low-Range from low-grade to severe, life-grade to severe, life-threateningthreatening
Most are easily Most are easily managed with minor managed with minor surgery and surgery and antibioticsantibiotics
Odontogenic InfectionsOdontogenic InfectionsOdontogenic InfectionsOdontogenic Infections
Systematic Systematic approach to approach to Infection PatientInfection Patient– Typical MicrobiologyTypical Microbiology– Natural history of Natural history of
odontogenic odontogenic infectionsinfections
– Principles of Principles of infection infection managementmanagement
– Indications for Indications for referral to OMSreferral to OMS
Microbiology Microbiology Microbiology Microbiology
Indigenous bacteriaIndigenous bacteria– Normal oral floraNormal oral flora
Polymicrobial Polymicrobial Aerobic-anaerobic compositionAerobic-anaerobic composition
– Aerobic gram + cocci (Streptococci)Aerobic gram + cocci (Streptococci)– Anaerobic gram + cocci (Strep, Peptostrep, Anaerobic gram + cocci (Strep, Peptostrep,
Pepto), gram + rods (Eubac, Lacto), and Pepto), gram + rods (Eubac, Lacto), and gram - rods (Porphromonas or Prevotella, gram - rods (Porphromonas or Prevotella, Fusobacterium)Fusobacterium)
Progression of Odontogenic Progression of Odontogenic InfectionsInfections
Progression of Odontogenic Progression of Odontogenic InfectionsInfections
PeriapicalPeriapical PeriodontalPeriodontal Soft tissue involvementSoft tissue involvement
– Determined by perforation of the cortical Determined by perforation of the cortical bone in relation to the muscle attachmentsbone in relation to the muscle attachments
Cellulitis- acute, painful, diffuse bordersCellulitis- acute, painful, diffuse borders Abscess- chronic, localized pain, fluctuant, Abscess- chronic, localized pain, fluctuant,
well circumscribed.well circumscribed.
Progression of Odontogenic Progression of Odontogenic InfectionsInfections
Progression of Odontogenic Progression of Odontogenic InfectionsInfections
Progression of Odontogenic Progression of Odontogenic InfectionsInfections
Principles of TreatmentPrinciples of TreatmentPrinciples of TreatmentPrinciples of Treatment
Determine the Determine the severity of the severity of the infectioninfection
Complete historyComplete history Physical Physical
examinationexamination State of the patients State of the patients
host defense host defense Treat the infection Treat the infection
surgicallysurgically
Principles of TreatmentPrinciples of TreatmentPrinciples of TreatmentPrinciples of Treatment
Support the patient Support the patient medicallymedically
Choose and Rx the Choose and Rx the appropriate ABappropriate AB
Re-evaluate the Re-evaluate the patient frequentlypatient frequently
Referral to OMS?Referral to OMS?
Severity of the InfectionSeverity of the InfectionSeverity of the InfectionSeverity of the Infection
Complete Complete HistoryHistory– Chief ComplaintChief Complaint– OnsetOnset– Duration Duration – SymptomsSymptoms
Severity of the InfectionSeverity of the InfectionSeverity of the InfectionSeverity of the Infection
How the patient How the patient feels- Malaisefeels- Malaise
Previous Previous treatmenttreatment
Self treatmentSelf treatment Past Medical Past Medical
HistoryHistory
Physical ExaminationPhysical ExaminationPhysical ExaminationPhysical Examination
Vital SignsVital Signs– Temperature- Temperature-
systemic systemic involvement >101 Finvolvement >101 F
– Blood Pressure- Blood Pressure- mild elevationmild elevation
– Pulse- >100Pulse- >100– Increased Increased
Respiratory Rate- Respiratory Rate- normal 14-16normal 14-16
Physical ExaminationPhysical ExaminationPhysical ExaminationPhysical Examination
General appearanceGeneral appearance Palpate the area of Palpate the area of
swellingswelling– Indurated- firm, hardIndurated- firm, hard– Fluctuant- fluid filledFluctuant- fluid filled– Doughy- normalDoughy- normal
Intra-oral examIntra-oral exam
Intraoral ExamIntraoral Exam
Radiographic ExaminationRadiographic Examination
PanorexPanorex Plain FilmsPlain Films CTCT MRIMRI
Radiographic Examination-Plain Radiographic Examination-Plain FilmsFilms
Radiographic Examination- Radiographic Examination- CTCT
Host Defense MechanismsHost Defense MechanismsHost Defense MechanismsHost Defense Mechanisms
Local defensesLocal defenses– Intact anatomic barrierIntact anatomic barrier– Indigenous bacteriaIndigenous bacteria
Humoral defensesHumoral defenses– ImmunoglobulinsImmunoglobulins– ComplementComplement
Cellular defensesCellular defenses– PhagocytesPhagocytes– LymphocytesLymphocytes
Medically Compromised Medically Compromised PatientsPatients
Medically Compromised Medically Compromised PatientsPatients
Uncontrolled Uncontrolled metabolic diseasesmetabolic diseases– AlcoholismAlcoholism– MalnutritionMalnutrition– DiabetesDiabetes
Suppressing Suppressing diseasesdiseases– LeukemiaLeukemia– LymphomaLymphoma– Malignant TumorsMalignant Tumors
Medically Compromised Medically Compromised PatientsPatients
Medically Compromised Medically Compromised PatientsPatients
Suppressing drugsSuppressing drugs– Chemotherapeutic Chemotherapeutic
agentsagents– ImmunosuppressivesImmunosuppressives
Indications for Indications for Referral to OMSReferral to OMSIndications for Indications for
Referral to OMSReferral to OMS
Rapidly Rapidly progressing progressing infectioninfection
Difficulty in Difficulty in breathingbreathing
Difficulty Difficulty swallowingswallowing
Fascial space Fascial space involvementinvolvement
Indications for ReferralIndications for ReferralIndications for ReferralIndications for Referral
Elevated Elevated Temperature >101 FTemperature >101 F
Severe trismusSevere trismus Toxic appearanceToxic appearance Compromised host Compromised host
defensesdefenses
Signs of InflammationSigns of InflammationSigns of InflammationSigns of Inflammation
Dolor- PainDolor- Pain Tumor- SwellingTumor- Swelling Calor- WarmthCalor- Warmth Rubor- RednessRubor- Redness Loss of functionLoss of function
– TrismusTrismus– Difficulty in Difficulty in
breathing, breathing, swallowing, chewingswallowing, chewing
Surgical TreatmentSurgical TreatmentSurgical TreatmentSurgical Treatment
Provide drainageProvide drainage Remove the cause Remove the cause
of infectionof infection– PulpectomyPulpectomy– ExtractionExtraction– Remove foreign Remove foreign
bodybody– Debride non-viable Debride non-viable
bonebone Culture and Culture and
sensitivitysensitivity
Surgical TreatmentSurgical TreatmentSurgical TreatmentSurgical Treatment
Incision and Incision and drainagedrainage– Dependent siteDependent site– Incision in healthy Incision in healthy
tissuetissue– Adequate drainageAdequate drainage– Exploration of all Exploration of all
involved spacesinvolved spaces– IrrigationIrrigation
Surgical TreatmentSurgical Treatment
Indications for Culture and Indications for Culture and Sensitivity TestingSensitivity Testing
Indications for Culture and Indications for Culture and Sensitivity TestingSensitivity Testing
Rapidly spreading Rapidly spreading infectioninfection
Post-op infectionPost-op infection Non-responsive Non-responsive
infectioninfection Recurrent infectionRecurrent infection Compromised host Compromised host
defensesdefenses
Microbiologic ConsiderationsMicrobiologic Considerations
Identification of Identification of bacteriabacteria– Representative Representative
specimen collectedspecimen collected– Examine specimenExamine specimen– Submit for culture Submit for culture
and sensitivityand sensitivity– Gram StainGram Stain
Culture and SensitivityCulture and Sensitivity
Gram StainGram Stain
Choosing the Appropriate Choosing the Appropriate AntibioticAntibiotic
Choosing the Appropriate Choosing the Appropriate AntibioticAntibiotic
Is an antibiotic Is an antibiotic necessary?necessary?
Indications:Indications:– Acute onset infectionAcute onset infection– Diffuse swellingDiffuse swelling– Compromised host Compromised host
defensesdefenses– Involvement of Involvement of
fascial spacesfascial spaces– Severe pericoronitisSevere pericoronitis
Principles of Antibiotic Principles of Antibiotic TherapyTherapy
Principles of Antibiotic Principles of Antibiotic TherapyTherapy
Use Empiric Use Empiric TherapyTherapy
Use narrowest Use narrowest spectrum drugspectrum drug
Use antibiotic with Use antibiotic with the lowest toxicitythe lowest toxicity
Use bactericidal Use bactericidal antibioticantibiotic
Be aware of Cost $$Be aware of Cost $$$$
Principles of Antibiotic Principles of Antibiotic TherapyTherapy
Principles of Antibiotic Principles of Antibiotic TherapyTherapy
Administer the Administer the antibiotic properlyantibiotic properly
Proper route of Proper route of administrationadministration
Proper doseProper dose Proper time intervalProper time interval Adequate period of Adequate period of
administrationadministration
Antibiotic Cost ComparisonAntibiotic Cost ComparisonAntibiotic Cost ComparisonAntibiotic Cost Comparison
DrugDrug DoseDose Cost for 10 Cost for 10 daysdays
Pen VKPen VK QIDQID $1.20$1.20 E-mycinE-mycin QIDQID $3.20$3.20 KeflexKeflex QIDQID $4.00$4.00 DuricefDuricef BIDBID $37.80$37.80 CiproCipro BIDBID $34.20$34.20
Antibiotic ComplianceAntibiotic ComplianceAntibiotic ComplianceAntibiotic Compliance
Dosage interval that encourages Dosage interval that encourages compliancecompliance
QD or BIDQD or BID 70%70%QIDQID 40%40%
Non-compliant after start feeling Non-compliant after start feeling betterbetter
3-5 days3-5 days 50%50%>7 days>7 days 20%20%
Support Patient MedicallySupport Patient MedicallySupport Patient MedicallySupport Patient Medically
FluidsFluids NutritionNutrition AnalgesicsAnalgesics Consider need for Consider need for
insulininsulin
Patient MonitoringPatient MonitoringPatient MonitoringPatient Monitoring
Re-evaluate the Re-evaluate the patient frequentlypatient frequently
Response to Response to treatmenttreatment– TemperatureTemperature– SwellingSwelling– How do you feel?How do you feel?
Need for additional Need for additional imaging?imaging?
Patient MonitoringPatient Monitoring
Development of an Development of an adverse reaction?adverse reaction?
Antibiotic Associated ColitisAntibiotic Associated Colitis
DiagnosisDiagnosis– Profuse watery Profuse watery
diarrhea >10 per daydiarrhea >10 per day– CrampingCramping– FeverFever– C. difficle culture and C. difficle culture and
toxin assaytoxin assay– Tissue cultureTissue culture
TreatmentTreatment– D/C current ABD/C current AB– Fluid managementFluid management– AntibioticsAntibiotics
» MetronidazoleMetronidazole» Vancomycin POVancomycin PO
Reasons for Treatment FailureReasons for Treatment FailureReasons for Treatment FailureReasons for Treatment Failure
Inadequate SurgeryInadequate Surgery Depressed host Depressed host
responsesresponses Foreign bodyForeign body Antibiotic problemsAntibiotic problems
– Patient noncompliancePatient noncompliance– Drug not reaching the Drug not reaching the
sitesite– Drug dose too lowDrug dose too low– Wrong antibioticWrong antibiotic
Fascial Space InfectionsFascial Space Infections
Mandibular Odontogenic InfectionsMandibular Odontogenic Infections
Sublingual spaceSublingual space Submental spaceSubmental space Submandibular Submandibular
spacespace Masticator spaceMasticator space Lateral pharyngeal Lateral pharyngeal
spacespace Retropharyngeal Retropharyngeal
spacespace
Submental Space InfectionSubmental Space Infection
Submental Space InfectionSubmental Space Infection
Sublingual Space InfectionSublingual Space Infection
Sublingual Space InfectionSublingual Space Infection
Submandibular Space Submandibular Space InfectionInfection
Masticator Space InfectionMasticator Space Infection
Masticator Space InfectionMasticator Space Infection
Lateral Pharyngeal SpaceLateral Pharyngeal Space
Retropharyngeal SpaceRetropharyngeal Space
Ludwig’s AnginaLudwig’s Angina
Maxillary Odontogenic InfectionsMaxillary Odontogenic Infections
Canine spaceCanine space Infratemporal Infratemporal
spacespace Temporal spaceTemporal space Buccal spaceBuccal space
Canine Space InfectionCanine Space Infection
Buccal Space InfectionBuccal Space Infection
Temporal Space InfectionTemporal Space Infection
Temporal Space InfectionTemporal Space Infection
Head and Neck InfectionsHead and Neck Infections
Peritonsilar Peritonsilar abcessabcess
Acute orbital Acute orbital cellulitiscellulitis
Cavernous sinus Cavernous sinus thrombosisthrombosis
MeningitisMeningitis Necrotizing Necrotizing
fascitisfascitis
Acute Orbital CellulitisAcute Orbital Cellulitis
Treatment of Odontogenic Treatment of Odontogenic InfectionsInfections
Determine the Determine the severity of the severity of the infectioninfection
Complete historyComplete history Physical Physical
examinationexamination State of the patients State of the patients
host defense host defense Treat the infection Treat the infection
surgicallysurgically
Support the patient Support the patient medicallymedically
Choose and Rx the Choose and Rx the appropriate ABappropriate AB
Re-evaluate the Re-evaluate the patient frequentlypatient frequently
Referral to OMS?Referral to OMS?
THANK YOU THANK YOU