24.6 Simplified BPE in Children and Full Periodontal Charting
Key Takeaways
- Simplified BPE is used from age 7 to 17 on six index teeth: the first permanent molars, and the upper right and lower left central incisors.
- Between ages 7 and 11 only codes 0, 1 and 2 are used because erupting teeth create false pockets.
- From age 12 to 17 the full range of codes is used.
- Clinical attachment loss equals probing depth plus recession when the gingival margin is apical to the CEJ, and probing depth minus overgrowth when it is coronal.
- A six-point chart records probing depth, gingival margin position, bleeding on probing and suppuration at every site.
3. Simplified BPE for Children and Adolescents
Performing full-mouth BPE in paediatric and young adolescent patients presents major diagnostic traps: during tooth eruption, junctional epithelium migration and marginal tissue enlargement create physiological "pseudopockets" (probing depths exceeding 3.5 mm) that can be easily misdiagnosed as true destructive periodontitis. To prevent over-treatment, the British Society of Periodontology (BSP) and the British Society of Paediatric Dentistry (BSPD) established the Simplified BPE protocol for patients aged 7 to 17 years.
The Six Paediatric Index Teeth
Screening is restricted exclusively to six index teeth (the first permanent molars and the central incisors):
\text{Upper Right: } \mathbf{16} & \text{Upper Anterior: } \mathbf{11} & \text{Upper Left: } \mathbf{26} \\ \hline \text{Lower Right: } \mathbf{46} & \text{Lower Anterior: } \mathbf{31} & \text{Lower Left: } \mathbf{36} \end{array}$$ *Index Tooth Substitution:* If an index incisor or first permanent molar is unerupted, missing, or fractured, the adjacent tooth within that sextant is **not** substituted; that specific index position is simply omitted from scoring. ### Age-Stratified Scoring Rules - **Ages 7 to 11 Years (Mixed Dentition):** Only **Codes 0, 1, and 2** are recorded. Probing depths exceeding 3.5 mm are ignored because false pocketing secondary to active eruption is ubiquitous at this developmental stage. If calculus, bleeding, or plaque retention is identified, prophylaxis and OHI are delivered. - **Ages 12 to 17 Years (Permanent Dentition):** The **full spectrum of BPE Codes (0, 1, 2, 3, 4, and *)** is utilized across the six index teeth. This enables early detection of molar-incisor pattern periodontitis (formerly localized aggressive periodontitis). The identification of Code 4 or Code * on any index tooth warrants immediate full-mouth 6-point charting, specialized radiographic evaluation, and potential referral to paediatric or periodontal specialists. ---4. Comprehensive Periodontal Charting & Clinical Attachment Loss (CAL)
When indicated by BPE screening (Codes 4 or *), a comprehensive 6-point periodontal chart must be recorded across all erupted teeth.
The Six Probing Sites Recorded Per Tooth
Buccal / Labial Aspect
┌──────────────┬──────────────┬──────────────┐
│ Mesio-buccal │ Mid-buccal │ Disto-buccal │
└──────────────┴──────────────┴──────────────┘
═══════════════════════════════════════════════ [Incisal Edge / Occlusal Surface]
┌──────────────┬──────────────┬──────────────┐
│Mesio-lingual │ Mid-lingual │Disto-lingual │
└──────────────┴──────────────┴──────────────┘
Lingual / Palatal Aspect
Clinical Parameters Recorded at Each Site
- Probing Pocket Depth (PPD): Distance from the gingival margin to the base of the probeable pocket (in millimetres).
- Gingival Margin Position (Recession / Overgrowth): Distance from the cemento-enamel junction (CEJ) to the gingival margin.
- Bleeding on Probing (BOP): Recorded as presence/absence within 30 seconds of probing (used to calculate full-mouth bleeding score, FMBS).
- Suppuration on Probing: Direct objective sign of active, neutrophil-rich purulent inflammation in the pocket wall.
Calculating Clinical Attachment Loss (CAL)
Probing pocket depth alone does not reflect historical or true anatomical tissue destruction because the gingival margin fluctuates. Clinical Attachment Loss (CAL) measures the true biological distance from a fixed anatomical landmark—the Cemento-Enamel Junction (CEJ)—to the base of the pocket / junctional epithelium.
Gingival Recession Gingival Overgrowth
(Margin Apical to CEJ) (Margin Coronal to CEJ)
┌─────────┐ ┌─────────┐
│ Enamel │ │ Enamel │
│ │ │ │
CEJ ─── ├─────────┤ Margin ─ ├─────────┤ ──┐ Overgrowth
│ Root │ │ │ │ (2 mm)
Margin ─ ├─────────┤ ──┐ Recession │ Root │ ──┘
│ │ │ (3 mm) CEJ ─── ├─────────┤ ──┐
│ Pocket │ │ │ Pocket │ │ PPD (6 mm)
Base ──── └─────────┘ ──┴── PPD (4 mm) Base ──── └─────────┘ ──┴──
CAL = PPD + Recession = 4 + 3 = 7 mm CAL = PPD - Overgrowth = 6 - 2 = 4 mm
- Gingival Margin at the CEJ:
- Gingival Margin Apical to the CEJ (Gingival Recession): Worked Example: Probing pocket depth = $4\text{ mm}$; gingival recession = $3\text{ mm}$.
- Gingival Margin Coronal to the CEJ (Pseudopocketing / Gingival Hyperplasia): Worked Example: Probing pocket depth = $6\text{ mm}$; gingival tissue extends $2\text{ mm}$ coronal to the CEJ.
Why Children Are Screened Differently
Simplified BPE exists because a full-mouth screen in a child is unnecessary, poorly tolerated and prone to false positives. False pocketing around partially erupted teeth is the central problem: the gingival margin has not yet migrated apically, so a probing depth of 4 mm or more may exist without any attachment loss. This is why codes 3 and 4 are not used in children under 12 in UK guidance, and why the finding of a deep probing depth in a partially erupted tooth is not, on its own, evidence of disease.
The counterpart is that genuine periodontitis in children and adolescents is uncommon but serious, often presenting in a molar–incisor pattern with rapid attachment loss in an otherwise healthy young person. Recognising it early and referring promptly is the examinable priority, because the prognosis depends heavily on the stage at which treatment starts, and because it may be associated with systemic conditions such as neutrophil disorders, hypophosphatasia and Papillon–Lefèvre syndrome.