Act as a university professor, I am preparing for my university theory examination. Your task is to identify all important diagrams that can be asked in theory exams for uploaded notes,diagrams list should be from referenced articles. No mention of any textbook source only articles
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"aggressive periodontitis" diagrams pathogenesis microbiota
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"aggressive periodontitis" pathogenesis host immune response
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"aggressive periodontitis" microbiology Aggregatibacter actinomycetemcomitans
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"aggressive periodontitis" radiographic bone loss treatment
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"aggressive periodontitis" genetics familial aggregation neutrophil
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I now have a thorough understanding of the entire document. Let me compile the comprehensive diagram list.
Important Diagrams for Theory Examination - Aggressive Periodontitis
Based on a thorough analysis of your uploaded notes, here is every diagram and visual that is likely to be asked in a theory exam. Each entry is mapped to its source article/consensus report.
FLOWCHARTS & CLASSIFICATION DIAGRAMS
1. Flowchart: Classification of Aggressive Periodontitis (LAP vs. GAP)
A branching flowchart showing AgP divides into Localized (LAP) and Generalized (GAP) with their respective features - circumpubertal onset, localized first molar/incisor pattern, robust antibody response (LAP) versus under-30 onset, generalized interproximal attachment loss, episodic progression, poor antibody response (GAP).
Article source: Armitage et al. (1999) - Ann Periodontol. 1999;4:53. (1999 International Workshop Consensus Report)
2. Flowchart: Historical Nomenclature Evolution of Aggressive Periodontitis
A timeline flowchart tracing the name changes:
- Diffuse atrophy of alveolar bone (Gottlieb 1923)
- Deep cementopathia (Gottlieb 1928)
- Parodontitis marginalis progressiva (Wannenmacher 1938)
- Paradontosis (Thoma & Goldman 1940)
- Periodontosis (Orban & Weinmann 1942)
- LJP / GJP (1966 WHO / Baer 1971)
- Early-Onset Periodontitis - EOP (1989)
- LAP / GAP (1999 AAP)
- Grade C Periodontitis (2017 World Workshop)
Article source: Armitage et al. (1999) - Ann Periodontol. 1999;4:53.; Papapanou PN et al. (2018) - J Periodontol. PMID: 29926951
3. Diagram: 2017 World Workshop Staging & Grading of Periodontitis (replacing AgP)
A matrix diagram showing Stages I-IV (severity/complexity) on one axis and Grades A/B/C (rate of progression) on the other. Includes the Grade C criteria - bone loss/age ratio ≥1.0, JP2 clone Aa as biomarker, and smoking/HbA1c as risk modifiers.
Article source: Tonetti MS, Greenwell H, Kornman KS (2018) - J Periodontol. 2018;89(Suppl 1):S159-S172; Papapanou PN et al. (2018) - J Periodontol. PMID: 29926951
MICROBIOLOGY DIAGRAMS
4. Diagram: Virulence Factors of Aggregatibacter actinomycetemcomitans (Aa)
A labeled diagram showing Aa's key virulence factors:
- Leukotoxin (LtxA) - kills PMNs and macrophages
- Cytolethal distending toxin (CDT)
- Fimbriae (adhesion)
- Lipopolysaccharide (LPS)
- Collagenase / bone resorption factors
- Immunosuppressive factors (suppresses IgG)
- JP2 clone - 530 bp deletion in promoter region → 10-20x more leukotoxin
Article source: Fine DH, Patil AG, Velusamy SK (2019) - Front Immunol. PMID: 31040843; Gholizadeh P et al. (2017) - Microb Pathog. PMID: 29117508; Fine DH et al. (2007) - J Clin Microbiol. 2007;45(12):3859-3869
5. Table/Diagram: Microbial Profile - LAP vs. GAP
A comparison diagram:
- LAP: predominantly Aa (Aggregatibacter actinomycetemcomitans), especially JP2 clone
- GAP: predominantly Porphyromonas gingivalis, also Aa, Tannerella forsythia, Treponema denticola
Article source: Kononen E, Muller HP (2014) - Periodontol 2000. PMID: 24738586; Nibali L (2015) - Virulence. PMID: 25654663
6. Diagram: JP2 Clone of Aa - Genetic Structure and Leukotoxicity
Shows the 530 bp deletion in the leukotoxin operon promoter region, resulting in markedly elevated leukotoxin production. Can be drawn as a gene map with the deletion highlighted.
Article source: Fine DH et al. (2007) - J Clin Microbiol. 2007;45(12):3859-3869 (Prospective cohort: 18x higher risk of LAP with JP2 clone)
HOST RESPONSE & IMMUNOLOGY DIAGRAMS
7. Diagram: PMN (Neutrophil) Defects in AgP - Chemotaxis Defect
A diagrammatic representation showing:
- Normal PMN chemotaxis pathway (FMLP receptor → signal → directed migration)
- Defective PMN in LAP: impaired chemotaxis (FMLP signaling defect), GP110 glycoprotein deficiency on surface, impaired phagocytosis
- ~75% of LAP patients have this defect
- FcγRIIa R131 allotype: reduced phagocytosis of Aa
Article source: Van Dyke TE, Levine MJ, Genco RJ (1985) - J Periodontol. 56(11 Suppl):606-16; Scott DA & Krauss J (2012) - Front Oral Biol. PMID: 22142957; Kulkarni C & Kinane DF (2014) - Periodontol 2000. PMID: 24738587
8. Diagram: Hyper-responsive Macrophage/Monocyte Phenotype in AgP
A pathway diagram illustrating:
- LPS from Aa/P. gingivalis stimulates monocytes
- Elevated PGE2 and IL-1β production (markedly elevated compared to chronic periodontitis)
- Downstream bone resorption via RANKL/OPG pathway
- Role of TNF-alpha
Article source: Page RC & Schroeder HE (1982) - Lab Investig. 46(5):556-574; Kulkarni C & Kinane DF (2014) - Periodontol 2000. PMID: 24738587
9. Diagram: IgG Subclass Response in LAP vs. GAP
A bar/comparison diagram:
- LAP: Robust IgG2 subclass antibody response against Aa → protective (opsonizes Aa, limits spread)
- GAP: Poor serum antibody response → failure to contain infection
- FcγRIIa polymorphism affecting IgG2 phagocytosis efficiency
Article source: Kulkarni C & Kinane DF (2014) - Periodontol 2000. PMID: 24738587; Nibali L (2015) - Virulence. PMID: 25654663
GENETIC & PATHOGENESIS DIAGRAMS
10. Diagram: Genetic Disorders Associated with Aggressive Periodontitis
A tabular/flowchart diagram listing systemic genetic conditions that present with aggressive periodontitis-like features:
- Leukocyte adhesion deficiency I (CD18 defect) and II (CD15/fucose metabolism defect)
- Chediak-Higashi syndrome (lysosomal trafficking regulator gene mutation)
- Papillon-Lefevre syndrome (Cathepsin C deficiency)
- Hypophosphatasia (tissue-nonspecific alkaline phosphatase deficiency)
- Trisomy 21 / Down syndrome
- Acatalasia, Ehlers-Danlos syndrome (types IV and VIII), Kindler syndrome
Article source: Fine DH, Armitage GC, Genco RJ (2019) - J Am Dent Assoc. PMID: 31668171; Papapanou PN et al. (2018) - J Periodontol. PMID: 29926951
11. Diagram: Candidate Gene Polymorphisms in Aggressive Periodontitis
A schematic linking candidate genes to their immune/tissue roles:
- IL-1 gene cluster (IL-1A, IL-1B, IL-1Ra)
- IL-4, IL-6, IL-10
- TNF-alpha
- FcγRIIa / FcγRIIIb (IgG Fc receptor genes)
- Vitamin D receptor gene
- TLR genes and CD14
- MMP-1
Article source: Toy VE & Uslu MO (2019) - Niger J Clin Pract. PMID: 30975946; Grevanny R et al. (2024) - Iran J Med Sci. PMID: 39678527 (epigenetic mechanisms)
12. Diagram: Page & Schroeder Pathogenesis Model Applied to AgP
A sequential diagram (4-stage model: initial lesion → early lesion → established lesion → advanced lesion) with AgP-specific annotations showing rapid progression through stages, predominantly PMN and T-cell mediated tissue destruction, and rapid bone loss.
Article source: Page RC & Schroeder HE (1982) - Lab Investig. 46(5):556-574 (foundational paper cited throughout the notes)
RADIOGRAPHIC PATTERN DIAGRAMS
13. Diagram: Radiographic Pattern of LAP - "Arc-shaped / Angular Bone Loss"
A schematic of a dental X-ray showing:
- Vertical angular bone loss around first molars and incisors
- Classic "arc-shaped" pattern on distal of second premolar/mesial of second molar
- Mirror-image (bilateral) symmetry
- Minimal bone loss at other teeth
Article source: Fine DH, Armitage GC, Genco RJ (2019) - J Am Dent Assoc. PMID: 31668171; Nibali L (2015) - Virulence. PMID: 25654663
14. Diagram: Radiographic Pattern of GAP - Generalized Bone Loss
Contrasting diagram showing widespread horizontal and vertical bone loss involving most teeth, severe destruction, and variable pattern. Juxtaposed against LAP pattern for comparison.
Article source: Kononen E & Muller HP (2014) - Periodontol 2000. PMID: 24738586
TREATMENT ALGORITHM DIAGRAMS
15. Flowchart: Treatment Protocol for AgP (LAP and GAP)
A step-by-step algorithm:
- Patient education + supragingival plaque control (<25% sites)
- Full-mouth SRP (completed within 24-48 hours)
- Systemic antibiotics - Amoxicillin 500 mg TID + Metronidazole 400 mg TID × 7 days (GAP); Tetracycline 250 mg QID × minimum 1 week (LAP/Aa-specific)
- Chlorhexidine rinses
- Re-evaluation at 6-8 weeks
- Surgical phase if indicated (with antibiotic cover beginning 1 hour pre-op)
- Supportive periodontal therapy + monitoring for recurrence
Article source: Guerrero A et al. (2005) - J Clin Periodontol. 2005;32(10):1096-1107 (RCT); Slots J & Rosling BG (1983) - J Clin Periodontol (original tetracycline rationale - PMID: 6579058); Sgolastra F et al. (2012) - J Periodontol. PMID: 22050545 (meta-analysis confirming amox+metro)
16. Table/Diagram: Antibiotic Selection Chart by Microflora in AgP
A decision-tree or table:
| Microflora type | Antibiotic |
|---|---|
| Aa-associated (LAP) | Tetracycline HCl 250 mg QID |
| Tetracycline-resistant Aa | Amoxicillin + Metronidazole |
| Gram-positive organisms | Amoxicillin-clavulanate |
| Gram-negative organisms | Clindamycin |
| Non-oral gram-negative rods | Ciprofloxacin |
| GAP current first-line | Amoxicillin 500 mg TID + Metronidazole 500 mg TID × 7 days |
Article source: Guerrero A et al. (2005) - J Clin Periodontol. 2005;32(10):1096-1107; Sgolastra F et al. (2012) - J Periodontol. PMID: 22050545; Rabelo CC et al. (cited in notes) - Systematic review on antibiotics in AgP
EPIDEMIOLOGY / PREVALENCE DIAGRAM
17. Bar Graph: Prevalence of AgP by Race, Age, and Type
A comparative bar diagram showing:
- LAP: 0.53% in U.S. 14-17 year-olds; higher in Black populations (Blacks > Whites; females > males in LAP)
- GAP: 0.13% in U.S. 14-17 year-olds; males more than females
- Rapid progression (Löe et al. Sri Lanka study): 8% rapid progressors with 0.1-1.0 mm/year attachment loss
Article source: Kononen E & Muller HP (2014) - Periodontol 2000. PMID: 24738586; Fine DH, Armitage GC, Genco RJ (2019) - J Am Dent Assoc. PMID: 31668171
SUMMARY PRIORITY TABLE FOR EXAM
| Priority | Diagram | Most Likely Exam Format |
|---|---|---|
| ★★★★★ | LAP vs. GAP classification flowchart | Long answer / short note |
| ★★★★★ | Aa virulence factors diagram | Short note / viva |
| ★★★★★ | Treatment algorithm (LAP + GAP) | Long answer |
| ★★★★★ | PMN chemotaxis defect in AgP | Short note |
| ★★★★★ | Radiographic arc-shaped bone loss (LAP) | Diagram with labeling |
| ★★★★ | Nomenclature evolution flowchart | Short note / table |
| ★★★★ | Genetic disorders table | Short note |
| ★★★★ | IgG2 antibody response comparison | Short note |
| ★★★★ | 2017 Staging & Grading diagram | Long answer / current classification |
| ★★★ | Antibiotic selection chart | Short note |
| ★★★ | Hyper-responsive macrophage diagram | Short note |
| ★★★ | Candidate gene polymorphisms | Short note |
Key articles to cite in answers:
- Armitage et al. (1999) Ann Periodontol - 1999 classification
- Fine DH et al. (2007) J Clin Microbiol - JP2 clone and LAP initiation
- Guerrero A et al. (2005) J Clin Periodontol - amox+metro RCT for GAP
- Sgolastra F et al. (2012) J Periodontol (PMID: 22050545) - meta-analysis confirming antibiotics in AgP
- Papapanou PN et al. (2018) J Periodontol (PMID: 29926951) - 2017 World Workshop, AgP → Grade C
- Kononen E & Muller HP (2014) Periodontol 2000 (PMID: 24738586) - microbiology review
- Kulkarni C & Kinane DF (2014) Periodontol 2000 (PMID: 24738587) - host response review
- Fine DH, Armitage GC, Genco RJ (2019) J Am Dent Assoc (PMID: 31668171) - LAP as distinct entity
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